Celes, Rune Knight Celes, Rune Knights main ability is to discard your hand and draw new cards, and it effectively sets up many synergies: discard, draw, combos, unearth, reanimate, you name it
Comeuppance is the source of the new damage, so the characteristics of the original source (such as its color, or whether it had lifelink or deathtouch) don't affect the new damage
For example, if three non-Human creatures attack, you won't look at the top eighteen cards of your library at once
This isnt the first time for MTG with such effects, of course, with cards like Selfless Savior aplenty, but it is still a major flavor win that perfectly honors his story
(2020-01-24) If an ability triggers whenever you tap something for mana and produces mana, that triggered mana ability wont be affected by Nyxbloom Ancient