Dorren Flukespring

When Dorren Flukespring enters the battlefield,
exile the top card of your deck. You may play it
until end of turn. If you play a Legendary
Creature this way, it gains haste until end of turn.
{g}: Once per turn, put a +1/+1 counter on
another Legendary Creature you control that
entered the battlefield this turn.
"Heroes rise / Legends fall /
Poems comprise / All and all."