Burning Sky is a legendary major card out of the New mechanic pool. Starfall drops three volleys of two stars at 50% damage, each crater burning for 5 s.

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 Comet and Meteor Shower. Take one and the rest are gone for the run.