Arcane Sanctum (Retro) [The Brothers' War Commander] Dominaria United then sacrifice Phantasmal Sphere unless

then sacrifice Phantasmal Sphere unless you pay {1} for each +1/+1 counter on it

Set: Mystery Booster Type: Creature — Eldrazi Rarity: Uncommon Cost: {8} All creatures able to block Breaker of Armies do so

Set: The Brothers' War Type: Enchantment Rarity: Rare Cost: {3}{B}{B} Whenever an opponent casts a spell

Sacrifice Mishra's Bauble: Look at the top card of target player's library

Set: Magic 2014 Type: Creature — Sliver Rarity: Uncommon Cost: {4}{R} Sliver creatures you control get +2/+0

Arcane Sanctum (Retro) [The Brothers' War Commander] Dominaria United then sacrifice Phantasmal Sphere unlessSet: The Brothers' War Commander Type: Land Rarity: Uncommon Arcane Sanctum enters the battlefield tapped. {T}: Add {W}, {U}, or {B}. "We must rely on our own knowledge, not on the dogma of the seekers or the mutterings of the sphinxes." Tullus of Palandius