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Message: <blockquote data-quote="KarinsDad" data-source="post: 323914" data-attributes="member: 2011">Ah, cool. <img src="https://cdn.jsdelivr.net/joypixels/assets/8.0/png/unicode/64/1f60e.png" class="smilie smilie--emoji" loading="lazy" width="64" height="64" alt=":cool:" title="Cool    :cool:"  data-smilie="6"data-shortname=":cool:" />Numion is going to try to repeatedly illustrate that Mirror Image is more potent than higher level spells and we get to attempt to prove him wrong each time.Sounds like fun!The main advantages of Mirror Image over Displacement:1) You have a miss chance on targeted spells with Mirror Image.2) It also, on the surface, appears to have a better duration (1 minute per level as opposed to 1 round per level), but that is misleading since once the images are gone via attacks, they are gone.The main advantages of Displacement over Mirror Image:1) You do not know that someone is displaced (unless your DM is stupid and tells you), hence, you sometimes miss and don't know why.2) Attacks do not lower the duration of the spell.3) Attacks do not lower the protectiveness of the spell.Mirror Image also has a protective advantage early on in a combat, but it loses this advantage quickly. Comparing 5 images (a reasonable average number for most levels) with Displacement yields:1st hit: 17% 50%2nd hit: 20% 50%3rd hit: 25% 50%4th hit: 33% 50%5th hit: 50% 50%6th hit: 100% 50%7th hit: 100% 50%etc.Remember, the chance to hit an image is typically much better than your chance to hit the arcane caster.For example, a human caster with Mage Armor, Shield spell, a DEX of 16 has an AC of 24. His images have an AC of 13.So, the chart above is somewhat misleading since images will get hit nearly every attack whereas the caster will get hit with those same attacks a lot less often.In other words, a lot of attacks that would have missed the caster anyway will still take out an image.And, this is especially true at high level. You might get a few more images, but full round attacks or a bunch of Magic Missiles by opponents can often take out those images in a few rounds. Displacement, on the other hand, will protect you for an entire combat unless it is dispelled.Conclusion: Mirror Image typically has a shorter duration. It typically only protects for the first two to four rounds that the caster is attacked. It is visible and hence draws attacks like flies (at least in my game). It is easier to get rid of. It's protective quality decreases over time.On the opposite side of the coin, it protects against targeted spell attacks, but they too lower it's overall duration. It also protects to a greater degree for a short period of time.</blockquote>

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