Altar of the Brood [Ugin's Fate] Legions You may play it this

You may play it this turn

Set: Commander's Arsenal Type: Enchantment Common Cost: {2}{U} Whenever an opponent casts a spell

Set: Zendikar Type: Legendary Planeswalker — Nissa Mythic Cost: {2}{G}{G} +1: Search your library for a card named Nissa's Chosen and put it onto the battlefield

you may pay {1} any time you could cast an instant

If you lose the flip

Altar of the Brood [Ugin's Fate] Legions You may play it thisSet: Ugin's Fate Type: Artifact 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.