Tangle Kelp [The Dark] Aura 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

exile it instead

(Artifacts

Set: Tenth Edition Type: Creature — Bird Rarity: Rare Cost: {G} Flying

Tangle Kelp [The Dark] Aura the player can activate manaSet: The Dark Type: Enchantment Aura Rarity: Uncommon Cost: {U} Enchant creature When Tangle Kelp enters the battlefield, tap enchanted creature. Enchanted creature doesn't untap during its controller's untap step if it attacked during its controller's last turn.