Slogurk the Overslime

“Trample <br> Whenever a land is put into your graveyard from anywhere, put a +1/+1 counter on Slogurk, the Overslime. <br> Remove three +1/+1 counters from Slogurk: Return it to its owner’s hand. <br> When Slogurk leaves the battlefield, return up to three target land cards from your graveyard to your hand.”