Riven, the Corrupted

Hexproof, Lifelink
When Riven, the Corrupted enters the battlefield, create ten 0/1 hundred-eye tokens with Defender,
and cannot be sacrificed.
When a hundred-eye token dies, give Riven, the Corrupted +2/+2 and each opponent
discards a card.
Exile Riven, the Corrupted if you control
no hundred-eye tokens.