Kalonian Hydra [Magic 2014] Avacyn Restored Set: Limited Edition Alpha Type:

Set: Limited Edition Alpha Type: Instant Common Cost: {X}{U} Counter target spell unless its controller pays {X}

you may have defending player activate a mana ability of each land they control and lose all unspent mana

Set: Aether Revolt Promos Type: Instant Rare Cost: {1}{U}{U} Counter target spell

If you sacrifice an Island this way

) As Hallowed Fountain enters the battlefield

Kalonian Hydra [Magic 2014] Avacyn Restored Set: Limited Edition Alpha Type:Set: Magic 2014 Type: Creature Hydra Mythic Cost: {3}{G}{G} Trample Kalonian Hydra enters the battlefield with four +1 +1 counters on it. Whenever Kalonian Hydra attacks, double the number of +1 +1 counters on each creature you control. Even baloths fear its feeding time.