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<blockquote data-quote="NotAYakk" data-source="post: 7928652" data-attributes="member: 72555">Another way to express it is &quot;how many non-fatal blows expected before concentration breaks&quot;.I'll assume Con save and Warcaster.At level 5, a d6 spellcaster with 14 con has (4+2)*6+2 = 38 HP.&nbsp; A 36 damage blow is DC 18; 64% chance to save.&nbsp; 7 5 point blows produce a bunch of DC 10 saves; 4% each, so 75% chance of keeping concentration.At level 10, they have 62 HP.&nbsp; 12 5 point blows at 2.25% each is 76% chance of maintaining concentration, one 60 point blow is a 0% chance.&nbsp; Two 30 point blows (DC 15) is 16% fail chance each, for 70% chance of maintaining concentration.&nbsp; A 40 point blow (DC 20) is 58% chance of maintaining concentration.At level 20, they have 122 HP.&nbsp; 24 5 point blows at 0.25% each is 94% chance of maintaining concentration.&nbsp; 4 30 point blows (DC 15) at 9% fail chance each is 68% chance of maintaining concentration.3 40 point blows (DC 20) at 30% fail chance each is 34% chance of maintaining concentration.If they bumped con a point (!) they'd have 142 HP, and 3 40 point blows (DC 20) have a 25% fail chance each, and a 42% chance of maintaining concentration.So warcaster + proficiency makes tiny blows trivial at all levels, there just aren't enough of them to break concentration before the target dies.&nbsp; At higher levels you need a big blow to break concentration; 40+ damage.</blockquote>

[QUOTE="NotAYakk, post: 7928652, member: 72555"] Another way to express it is "how many non-fatal blows expected before concentration breaks". I'll assume Con save and Warcaster. At level 5, a d6 spellcaster with 14 con has (4+2)*6+2 = 38 HP. A 36 damage blow is DC 18; 64% chance to save. 7 5 point blows produce a bunch of DC 10 saves; 4% each, so 75% chance of keeping concentration. At level 10, they have 62 HP. 12 5 point blows at 2.25% each is 76% chance of maintaining concentration, one 60 point blow is a 0% chance. Two 30 point blows (DC 15) is 16% fail chance each, for 70% chance of maintaining concentration. A 40 point blow (DC 20) is 58% chance of maintaining concentration. At level 20, they have 122 HP. 24 5 point blows at 0.25% each is 94% chance of maintaining concentration. 4 30 point blows (DC 15) at 9% fail chance each is 68% chance of maintaining concentration. 3 40 point blows (DC 20) at 30% fail chance each is 34% chance of maintaining concentration. If they bumped con a point (!) they'd have 142 HP, and 3 40 point blows (DC 20) have a 25% fail chance each, and a 42% chance of maintaining concentration. So warcaster + proficiency makes tiny blows trivial at all levels, there just aren't enough of them to break concentration before the target dies. At higher levels you need a big blow to break concentration; 40+ damage. [/QUOTE]

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