Gregori, Lantern Bearer

Trample, Vigilance
Whenever Gregori, Lantern Bearer attacks,
it explores. (Reveal the top card of your
library. Put that card into your hand if it's a land.
Otherwise, put a +1/+1 counter on this creature,
then put the card back or into your graveyard.)
Whenever another creature is put in a graveyard,
you gain 2 life and Gregori, Lantern Bearer gains
lifelink until end of turn,