Primordial Hydra [Magic 2013] Plains Island the player can activate mana

the player can activate mana abilities only if they're from lands that player controls and only if mana they produce is spent to activate other mana abilities of lands the player controls and/or to play that card

Set: Fifth Dawn Type: Artifact Creature — Construct Rarity: Rare Cost: {4} No more than one creature can attack each combat

or did some inconceivable force shape the unshapable

He's switched sides so often that he has become everyone's ally yet no one's friend

Set: Mirrodin Type: Creature — Vedalken Wizard Rarity: Rare Cost: {2}{U}{U} Whenever you cast an artifact spell

Primordial Hydra [Magic 2013] Plains Island the player can activate manaSet: Magic 2013 Type: Creature Hydra Rarity: Mythic Cost: {X}{G}{G} Primordial Hydra enters the battlefield with X +1 +1 counters on it. At the beginning of your upkeep, double the number of +1 +1 counters on Primordial Hydra. Primordial Hydra has trample as long as it has ten or more +1 +1 counters on it.