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Message: <blockquote data-quote="tetrasodium" data-source="post: 8810108" data-attributes="member: 93670">Why the effort trying to invent new terms for commonly understood existing jargon that's well understood even beyond ttrpg circles?  How is this distinct enough to not just be "debuff" or something?  d&d once had a nuanced subsystem for what you seem to be talking about[spoiler="3.x dmg298"]SPELL RESISTANCESpell resistance is the extraordinary ability to avoid being affected by spells. (Some spells also grant spell resistance.) To affect a creature that has spell resistance, a spellcaster must make a caster level check (1d20 + caster level) at least equal to the creature’s spell resistance. (The defender’s spell resistance is like an Armor Class against magical attacks.) If the caster fails the check, the spell doesn’t affect the creature. The possessor does not have to do anything special to use spell resistance. The creature need not even be aware of the threat for its spell resistance to operate.Only spells and spell-like abilities are subject to spell resistance. Extraordinary and supernatural abilities (including enhancementbonuses on magic weapons) are not. For example, the fear effect from a rod of lordly might is subject to spell resistance because it is aspell-like effect. The rod’s combat bonuses (such as the +2 bonus from the rod’s mace form) are not. A creature can have some abilities that are subject to spell resistance and some that are not. For example, an androsphinx’s divine spells are subject to spell resistance, but its roar is not. (The roar is a supernatural ability.) A, cleric’s spells are subject to spell resistance, but his use of positive or negative energy is not. Even some spells ignore spell resistance; see When Spell Resistance Applies, below.A creature can voluntarily lower its spell resistance. Doing so is a standard action that does not provoke an attack of opportunity. Once a creature lowers its resistance, it remains down until the creature’s next turn. At the beginning of the creature’s next turn, the creature’s spell resistance automatically returns unless the creature intentionally keeps it down (also a standard action that does not provoke an attack of opportunity).A creature’s spell resistance never interferes with its own spells, items, or abilities. A creature with spell resistance cannot impart this power to others by touching them or standing in their midst. Only the rarest of creatures and a few magic items have the ability to bestow spell resistance upon another.Spell resistance does not stack. It overlaps. If a cleric wearing +1 chainmail that grants him spell resistance 15 casts holy aura, which grants spell resistance 25 against evil spells and spells cast by evil creatures, he has spell resistance 25 against the aforementioned spells and spell resistance 15 against other spells and spell-like abilities.When Spell Resistance Applies Each spell described in the Player’s Handbook includes an entry that indicates whether spell resistance applies to the spell. In general, whether spell resistance applies depends on what the spell does:Targeted Spells: Spell resistance applies if the spell is targeted at the creature. Some individually targeted spells, such as magic missile when cast by a 3rd-level caster, can be directed at several creatures simultaneously. In such cases, a creature’s spell resistance applies only to the portion of the spell actually targeted at that creature. If several different resistant creatures are subjected to such a spell, each checks its spell resistance separately.Area Spells: Spell resistance applies if the resistant creature is within the spell’s area. It protects the resistant creature without affecting the spell itself.Effect Spells: Most effect spells summon or create something and are not subject to spell resistance. For instance, summon monster I summons a monster that can attack a creature with spell resistance normally. Sometimes, however, spell resistance applies to effect spells, usually to those that act upon a creature more or less directly, such as web.Spell resistance can protect a creature from a spell that’s already been cast. Check spell resistance when the creature is first affected by the spell. For example, if an ogre mage flies within 10 feet of a wall of fire, the caster must make a caster level check against the ogre mage’s spell resistance of 18. If the caster fails, the wall does not damage the ogre mage.Check spell resistance only once for any particular casting of a spell or use of a spell-like ability. If spell resistance fails the first time, it fails each time the creature encounters that same casting of the spell. Likewise, if the spell resistance succeeds the first time, it always succeeds. For example, a succubus encounters Jozan’s blade barrier spell. If the cleric makes a successful roll to overcome the spell resistance of the succubus, the creature takes damage from the spell. If the succubus survives and enters that particular blade barrier a second time, the creature will be damaged again. No second roll is needed. If the creature has voluntarily lowered its spell resistance and is then subjected to a spell, the creature still has a single chance to resist that spell later, when its spell resistance is up.Spell resistance has no effect unless the energy created or released by the spell actually goes to work on the resistant creature’s mind or body. If the spell acts on anything else (the air, the ground, the room’s light), and the creature is affected as a consequence, no roll is required. Creatures can be harmed by a spell without being directly affected. For example, a daylight spell harms a dark elf because drow have light blindness. Daylight, however, usually is cast on the area containing the drow, making it bright, not on the drow itself, so the effect is indirect. Spell resistance would only apply if someone tried to cast daylight on an object the drow was holding.Spell resistance does not apply if an effect fools the creature’s senses or reveals something about the creature, such as minor illusion or detect thoughts does.Magic actually has to be working for spell resistance to apply. Spells that have instantaneous durations but lasting results aren’t subject to spell resistance unless the resistant creature is exposed to the spell the instant it is cast. For example, a creature with spell resistance can’t undo a wall of stone that has already been cast. When in doubt about whether a spell’s effect is direct or indirect, consider the spell’s school:Abjuration: The target creature must be harmed, changed, or restricted in some manner for spell resistance to apply. Perception changes, such as nondetection, aren’t subject to spell resistance. Abjurations that block or negate attacks are not subject to an attacker’s spell resistance—it is the protected creature that is affected by the spell (becoming immune or resistant to the attack).Conjuration: These spells are usually not subject to spell resistance unless the spell conjures some form of energy, such as Melf ’s acid arrow or power word stun. Spells that summon creatures or produce effects that function like creatures are not subject to spell resistance.Divination: These spells do not affect creatures directly and are not subject to spell resistance, even though what they reveal about a creature might be very damaging.Enchantment: Since enchantment spells affect creatures’ minds, they are typically subject to spell resistance.Evocation: If an evocation spell deals damage to the creature, it has a direct effect. If the spell damages something else, it has anindirect effect. For example, a lightning bolt cast at a resistant creature is subject to spell resistance (which would protect only thecreature but would not affect the spell itself ). If the lightning bolt is cast at a chamber’s ceiling, bringing down a rain of debris, it is not subject to spell resistance.Illusion: These spells are almost never subject to spell resistance. Illusions that entail a direct attack, such as phantasmal killer or shadow evocation, are exceptions.Necromancy: Most of these spells alter the target creature’s life force and are subject to spell resistance. Unusual necromancy spells, such as spectral hand, don’t affect other creatures directly and are not subject to spell resistance.Transmutation: These spells are subject to spell resistance if they transform the target creature. Transmutation spells are notsubject to spell resistance if they are targeted on a point in space instead of on a creature. Transmute rock to mud and entangle changea creature’s surroundings, not the creature itself, and are not subject to spell resistance. Some transmutations make objects harmful (ormore harmful), such as magic stone. Even these spells are not generally subject to spell resistance because they affect the objects, not the creatures against which the objects are used. Spell resistance works against magic stone only if the creature with spell resistance is holding the stones when the cleric casts magic stone on them.Successful Spell ResistanceSpell resistance prevents a spell or a spell-like ability from affecting or harming the resistant creature, but it never removes a magical effect from another creature or negates a spell’s effect on another creature. Spell resistance prevents a spell from disruptinganother spell.Against an ongoing spell that has already been cast, a failed check against spell resistance allows the resistant creature toignore any effect the spell might have. The magic continues to affect others normally.[/spoiler][spoiler="and the MM pg300 BTC guidance"]ehind the curtain: Spell Resistance & Damage ReductionToo much spell resistance or damage reduction can' make a monster virtually unbeatable at the Challenge Rating you're aiming for. Too little, and the monster might as well not: have any at all. Since any character will havee the caster level or magic weaponry necessary to penetrate the creature's defense.Spell Resistance: If you choose to give your monster this ability. you'll probably want to set the resistance number equal to the creature's CR+11 This means that a character of a level equal to the creature's will have a 50%”: chance to overcome the monster's spell resistance (Barring Spell Penetration Feat). For example. a 12th-levecharacter has a 50% chance to overcome spell resistance 23, so 23 isa good spell res-stance number for a CR 12 creature. You may need to adjust a creature's spell resistance number afteryou ﬁnally settle on a CR {or the creature...If you want a highly magic-resistant creature. set the monster's spell resistance higher than CR +11 For lesser resistance set the spell resistance lower. For each point of resistance. you'll change the change the chance of successfully overcoming spell resistance by 5%. For example. a 12tlevel caster has a 45% chance to overcome spell resistance 24. and no chance to overcome spell resistance 33Damage Reduction: Assigning a damage reduction value can be tricky. Setting the value. too high can make a creature virtually immuneto physical attacks. On the other hand. most player characters carry some magic weapons. so setting the value too low can result in an ineffective ability.RecommendedTarget CR - Recommended Damage Reduction0~2 - None3—5 - 56—13 - 1014-20 - 15Remember. even if player characters can hurt the monster. lesser creatures in the game world often cannot hurt the creature. nor can theplayer character's cohorts or any creatures their summon.[/spoiler]"Set up spell" sounds like a term that falls somewhere between engrish translations or looking back at the efforts of old scifi to come up with what seemed like futuristic sounding terms for "computer"</blockquote>

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