Burrowing [Beta Edition] Human Warrior if you had another creature

if you had another creature enter the battlefield under your control last turn

X can't be 0

Corrupted Metalcraft — As long as you control three or more artifacts and an opponent has three or more poison counters

Set: Double Masters Type: Enchantment Rarity: Mythic Cost: {2}{R}{R} Whenever a creature enters the battlefield

Set: Secret Lair Drop Promos Type: Creature — Sliver Rarity: Rare Cost: {1}{G}{W} All Slivers have “When this permanent enters the battlefield

Burrowing [Beta Edition] Human Warrior if you had another creatureSet: Beta Edition Type: Enchantment Aura Rarity: Uncommon Cost: {R} Enchant creature Enchanted creature has mountainwalk. (It can't be blocked as long as defending player controls a Mountain.)