Avatar is a legendary major card out of the New mechanic pool. Ascendant Form grants +70% Power for 12 s and mends 15% on entry.

You can take it once · it only turns up when your Ultimate ability can actually use it · it can be offered for 0 of the 34 abilities.

Only one card can reshape that ability this way — this one, or Enduring Ascension and Radiant Ascension. Take one and the rest are gone for the run.