Karn, Legacy Reforged (Retro) [March of the Machine: The Aftermath] Tyranid Mutant Set: Summer Magic / Edgar

Set: Summer Magic / Edgar Type: Enchantment Rarity: Uncommon Cost: {2}{W}{W} At the beginning of your upkeep

If you do and they guessed wrong

Set: Friday Night Magic 2012 Type: Creature — Phyrexian Elf Warrior Rarity: Rare Cost: {G} Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters

Kithkin healers chant the clan songs of both their parents over the broth to double its curative effect

Set: International Collectors' Edition Type: Enchantment — Aura Rarity: Common Cost: {R} Enchant creature

Karn, Legacy Reforged (Retro) [March of the Machine: The Aftermath] Tyranid Mutant Set: Summer Magic / EdgarSet: 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.