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<blockquote data-quote="Warskull" data-source="post: 6288004" data-attributes="member: 6775133">It is currently: 8+Ability Bonus+Proficiency=DC1d20+Ability Bonus+Proficiency=Saving ThrowSaving throw much match or exceed DCIf you changed it to:1d20+Ability Bonus+Proficiency=Attack Roll14+Ability Bonus+Proficiency(save)=DefenseAttack roll must match or exceed defenseIt would be mathematically equivalent.&nbsp; You would have a default 35% chance to success vs the enemy have a 65% chance to save in the saving throw system.So a character with +2 charisma bonus and +3 proficiency in charisma save would have a 19 Defense against charisma targeting spells.There is one huge downside to attack rolls vs defense rolls.&nbsp; With attacks the player usually rolls once, while with defense rolls every creature affected rolls.&nbsp; So to keep the systems equivalent for AoE spells your player needs to roll for each target separately.&nbsp; If they roll once and then apply it to all the targets it makes AoE spells all or nothing which is undesirable.Also when the player rolls multiple dice for an AoE attack there are arguments as to which die applies to which creature.&nbsp; It also gives the player more information.&nbsp; A player over time can figure out the defense of a creature.&nbsp; If they hit with 18 and miss with a 13 they now have a range for that enemies save.&nbsp; When the DM rolls that information is hidden and it is much more difficult to discern the probabilities.Just some things to think about on saves vs attack rolls.</blockquote>

[QUOTE="Warskull, post: 6288004, member: 6775133"] It is currently: 8+Ability Bonus+Proficiency=DC 1d20+Ability Bonus+Proficiency=Saving Throw Saving throw much match or exceed DC If you changed it to: 1d20+Ability Bonus+Proficiency=Attack Roll 14+Ability Bonus+Proficiency(save)=Defense Attack roll must match or exceed defense It would be mathematically equivalent. You would have a default 35% chance to success vs the enemy have a 65% chance to save in the saving throw system. So a character with +2 charisma bonus and +3 proficiency in charisma save would have a 19 Defense against charisma targeting spells. There is one huge downside to attack rolls vs defense rolls. With attacks the player usually rolls once, while with defense rolls every creature affected rolls. So to keep the systems equivalent for AoE spells your player needs to roll for each target separately. If they roll once and then apply it to all the targets it makes AoE spells all or nothing which is undesirable. Also when the player rolls multiple dice for an AoE attack there are arguments as to which die applies to which creature. It also gives the player more information. A player over time can figure out the defense of a creature. If they hit with 18 and miss with a 13 they now have a range for that enemies save. When the DM rolls that information is hidden and it is much more difficult to discern the probabilities. Just some things to think about on saves vs attack rolls. [/QUOTE]

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