Riku, Greed Incarnate

When Riku, Greed Incarnate enters the
battlefield gain control of targeted permanent
with a converted mana cost of 4 or less until
Riku, Greed Incarnate leaves the battlefield.
2{u}{t}: Draw a card for each type of permanent
among permanents you control but do not own.
Friends are helpful when you are looking but do not
know where to look or what to really look for.