Nim Mongoose [Unknown Event]Set: Unknown Event Type: Creature Zombie Mongoose Rarity: Common Cost: {B} Shroud (This creature can't be the target of spells or abilities.) Nim Mongoose enters the battlefield tapped. Threshold Nim Mongoose gets +1 +0 for each artifact you control as long as seven or more cards are in your graveyard.

Set: Urza's Destiny Type: Artifact Creature — Construct Rarity: Rare Cost: {3} {T}: Reveal any number of artifact cards in your hand

Set: EX: Legend Maker Type: Grass Rarity: Uncommon Retreat cost: Colorless

I have always thought Mirri belongs in Llanowar most of all

Whenever an artifact enters the battlefield

Set: Sword & Shield: Battle Styles Type: Supporter Rarity: Secret Rare

Set: Oversize Cards Rarity: Rare 0: Sacrifice a land to gain two life

Set: Theros Beyond Death Promos Type: Sorcery Rarity: Rare Cost: {2}{W} Search your library for an enchantment card

Set: Promo Finish: Rainbow Foil Type: Action Rarity: Promo Class: Wizard Cost: 2 Deal 3 arcane damage to target hero

Pay 1 life: Exile the top card of your library face down

while Serperior

a legendary 4/4 green Elemental creature token

Set: Modern Horizons 2 Prerelease Promos Type: Artifact — Equipment Rarity: Rare Cost: {3} Living weapon (When this Equipment enters the battlefield