Sidisi, Brood Tyrant [Khans of Tarkir Prerelease Promos] Legendary Artifact Set: Alpha Edition Type: Instant

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

Set: Urza's Legacy Promos Type: Artifact Creature — Golem Rarity: Rare Cost: {6} Beast of Burden's power and toughness are each equal to the number of creatures on the battlefield

{2}: Masticore deals 1 damage to target creature

yet subtle utility

you may put a charge counter on Darksteel Reactor

Sidisi, Brood Tyrant [Khans of Tarkir Prerelease Promos] Legendary Artifact Set: Alpha Edition Type: InstantSet: Khans of Tarkir Prerelease Promos Type: Legendary Creature Naga Shaman Rarity: Mythic Cost: {1}{B}{G}{U} Whenever Sidisi, Brood Tyrant enters the battlefield or attacks, mill three cards. Whenever one or more creature cards are put into your graveyard from your library, create a 2 2 black Zombie creature token.