Bonsly

Whenever a blue source deals damage to Bonsly,
sacrifice it.
Last strike
{4},{t}: Copy target activated ability from a tapped
creature. You may choose new targets for the
copy.
{3}, {t}: Sacrifice Bonsly, search your library for a
red and green Elemental Treefolk creature card
with converted mana cost 5 or less, put it on the
battlefield tapped, then shuffle your
library.