Skilled Ambusher

When Skilled Ambusher enters the battlefield, it explores X (Reveal the top X cards
of your library. Put all lands revealed this way
into your hand. Otherwise, put a +1/+1 counter on this creature, then put the cards back on top or into your graveyard.)
Raid - On your end step if you attacked with a creature this turn, you may move a +1/+1 counter from Skilled Ambusher to another creature you control.