Karn, Legacy Reforged (Future Sight) [Mystery Booster 2] Human Assassin Note the number and kind

Note the number and kind of counters that were on that creature

Eye of Chaos (When this creature enters the battlefield

Unleash the Villains and Their Henchmen

Set: Urza's Saga Type: Enchantment Rarity: Rare Cost: {2}{B} At the beginning of your upkeep

Set: Secret Lair Drop Series Type: Legendary Creature — Phyrexian Praetor Rarity: Mythic Cost: {6}{G}{G} Trample

Karn, Legacy Reforged (Future Sight) [Mystery Booster 2] Human Assassin Note the number and kindSet: Mystery Booster 2 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.