Ka'Ren, Frail Sister

Manipulate (Your creatures can help pay for
this creature's {t} ability cost. Each creature you
tap pays for {1} or one mana of that creature's color.)
{4}, {t}: Search your library for a basic land card
and put it onto the battlefield. Then shuffle
your library. If it was a plains or forest card, gain
3 life. If it was a swamp or mountains, deal 1
damage to each opponent. If it was an island,
draw a card.