Goblin Surfeiomancer

Instant and Sorcery cards in your hand with flashback, rebound, and retrace have burnout
(You may pay an additional 3 life and discard a
nonland card when you cast this spell. If you do, copy
it and you may choose new targets for the copy. Then
put this card outside the game.)
Whenever you cast a spell with burnout, put a
+1/+1 counter on Goblin Surfeiomancer.