Whirlpool Warrior

Whirlpool Warrior {2}{U}

Creature - Merfolk Warrior | Power/Toughness: 2 / 2 (CMC 3)
When Whirlpool Warrior enters the battlefield, shuffle the cards from your hand into your library, then draw that many cards.
{R}, Sacrifice Whirlpool Warrior: Each player shuffles the cards from their hand into their library, then draws that many cards.