Lochmere Serpent (Extended) [Throne of Eldraine]

Description

Set:	Throne of Eldraine
Type:	Creature — Serpent
Rarity:	Rare
Cost:	{4}{U}{B}

Flash
{U}, Sacrifice an Island: Lochmere Serpent can't be blocked this turn.
{B}, Sacrifice a Swamp: You gain 1 life and draw a card.
{U}{B}: Exile five target cards from an opponent's graveyard. Return Lochmere Serpent from your graveyard to your hand. Activate this ability only any time you could cast a sorcery.