Sword of Kaldra [Mirrodin] Legendary Creature You can't lose the game

You can't lose the game and your opponents can't win the game

you may remove any number of +1/+1 counters from Tetravus

As the green sun crowned

Eternal life is worth any sacrifice

and a land

Sword of Kaldra [Mirrodin] Legendary Creature You can't lose the gameSet: Mirrodin Type: Legendary Artifact Equipment Rarity: Rare Cost: {4} Equipped creature gets +5 +5. Whenever equipped creature deals damage to a creature, exile that creature. (Exile it only if it's still on the battlefield.) Equip {4} ({4}: Attach to target creature you control. Equip only as a sorcery. This card enters the battlefield unattached and stays on the battlefield if the creature leaves.)