Karn, Legacy Reforged [March of the Machine: The Aftermath]

Karn, Legacy Reforged [March of the Machine: The Aftermath]Set: March of the Machine: The Aftermath Type: Legendary Artifact Creature Golem Rarity: Mythic Cost: {5} Karn, Legacy Reforged's power and toughness are each equal to the greatest mana value among artifacts you control. At the beginning of your upkeep, add {C} for each artifact you control. This mana can't be spent to cast nonartifact spells. Until end of turn, you don't lose this mana as steps and phases end.

it has "When this creature dies

Set: Dragons of Tarkir Type: Enchantment Rarity: Rare Cost: {2}{B} {1}{B}

Set: Commander 2011 Type: Instant — Trap Rarity: Uncommon Cost: {4}{B}{B} If a white creature is attacking

you may put Nether Shadow onto the battlefield

Set: Commander Legends: Battle for Baldur's Gate Prerelease Promos Type: Sorcery Rarity: Mythic Cost: {5}{B}{B} Destroy all creatures

Set: Onslaught Type: Creature — Elemental Cat Rarity: Rare Cost: {1}{R}{R}{R} Trample

Threshold — Nantuko Blightcutter gets +1/+1 for each black permanent your opponents control as long as seven or more cards are in your graveyard

Set: Theros Beyond Death Type: Creature — Archon Rarity: Uncommon Cost: {4}{W}{W} Flying

few Phyrexians made it as far as Llanowar's canopy

Set: Time Spiral Remastered Type: Creature — Spirit Rarity: Rare Cost: {B}{B} Haste

Set: Iconic Masters Type: Legendary Creature — Phyrexian Praetor Rarity: Mythic Cost: {5}{B}{B} Swampwalk (This creature can't be blocked as long as defending player controls a Swamp

Set: Judge Gift Cards 2013 Type: Sorcery Rarity: Rare Cost: {3}{U}{U} Search target opponent's library for a creature card and put that card onto the battlefield under your control