Heirloom Blade [Secret Lair Drop Series] Windgrace Known as Undermountain

Known as Undermountain

Set: Summer Magic / Edgar Type: Enchantment — Aura Rarity: Uncommon Cost: {2}{U} Enchant enchantment

and it's even possible to open 4 though that's less than 1% of the time

Other Elf creatures you control get +1/+1 for each +1/+1 counter on Joraga Warcaller

return it to its owner's hand at the beginning of the next end step

Heirloom Blade [Secret Lair Drop Series] Windgrace Known as UndermountainSet: Secret Lair Drop Series Type: Artifact Equipment Rarity: Rare Cost: {3} Equipped creature gets +3 +1. Whenever equipped creature dies, you may reveal cards from the top of your library until you reveal a creature card that shares a creature type with it. Put that card into your hand and the rest on the bottom of your library in a random order. Equip {1}