Mudslide [Ice Age] Rare Mishra also mastered the intricacies

Mishra also mastered the intricacies of artifice

Set: Portal Three Kingdoms Type: Creature — Ox Rarity: Uncommon Cost: {3}{G} Swampwalk (This creature can't be blocked as long as defending player controls a Swamp

If you do and they guessed wrong

Set: Unlimited Edition Type: Creature — Troll Rarity: Rare Cost: {2}{R} Sedge Troll gets +1/+1 as long as you control a Swamp

Mudslide [Ice Age] Rare Mishra also mastered the intricaciesSet: Ice Age Type: Enchantment Rarity: Rare Cost: {2}{R} Creatures without flying don't untap during their controllers' untap steps. At the beginning of each player's upkeep, that player may choose any number of tapped creatures without flying they control and pay {2} for each creature chosen this way. If the player does, untap those creatures.