Mana Vault [Fifth Edition] Modern Set: Antiquities Type: Artifact Creature

Set: Antiquities Type: Artifact Creature — Golem Rarity: Rare Cost: {9} Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking

Set: Portal Three Kingdoms Type: Legendary Creature — Human Soldier Warrior Rarity: Rare Cost: {4}{G} Horsemanship (This creature can't be blocked except by creatures with horsemanship

Set: Unlimited Edition Type: Enchantment — Aura Rarity: Rare Cost: {W} Enchant Wall

but my host would casually push it down before I could make out what it was

At the beginning of the next end step

Mana Vault [Fifth Edition] Modern Set: Antiquities Type: Artifact CreatureSet: Fifth Edition Type: Artifact Rarity: Rare Cost: {1} Mana Vault doesn't untap during your untap step. At the beginning of your upkeep, you may pay {4}. If you do, untap Mana Vault. At the beginning of your draw step, if Mana Vault is tapped, it deals 1 damage to you. {T}: Add {C}{C}{C}.