Altar of the Brood [Khans of Tarkir] Asia Pacific Land Program Whenever Xantid Swarm attacks

Whenever Xantid Swarm attacks

Set: Mercadian Masques Type: Instant Rarity: Rare Cost: {3}{U}{U} You may exile a blue card from your hand rather than pay this spell's mana cost

or land card from their hand onto the battlefield

each other attacking creature gets +1/+0 until end of turn

Living metal encasing dying flesh

Altar of the Brood [Khans of Tarkir] Asia Pacific Land Program Whenever Xantid Swarm attacksSet: Khans of Tarkir Type: Artifact Rarity: Rare Cost: {1} Whenever another permanent enters the battlefield under your control, each opponent mills a card. Supplicants offer flesh and silver, flowers and blood. The altar takes what it will, eyes gleaming with unspoken promises.