Altar of the Brood [Ugin's Fate] Gatecrash Prerelease Promos you get an experience counter

you get an experience counter

When Spreading Algae is put into a graveyard from the battlefield

From a whisper to a roar

and I will fill you with the glory of Phyrexian perfection

Opal Titan becomes a 4/4 Giant creature with protection from each of that spell's colors

Altar of the Brood [Ugin's Fate] Gatecrash Prerelease Promos you get an experience counterSet: Ugin's Fate 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.