Gyarados (4/123) [HeartGold & SoulSilver: Base Set]Set: HeartGold & SoulSilver: Base Set Type: Water Rarity: Holo Rare Retreat cost: Colorless,Colorless,Colorless

put that creature into your hand

except for creatures that couldn't attack

Set: Ikoria: Lair of Behemoths Type: Legendary Creature — Cat Nightmare Beast Rarity: Mythic Cost: {2}{W}{B}{G} Mutate {4}{G/W}{B}{B} (If you cast this spell for its mutate cost

Set: Summer Magic / Edgar Type: Creature — Wall Rarity: Uncommon Cost: {1}{R}{R} Defender (This creature can't attack

Set: Jumpstart Type: Legendary Creature — Human Advisor Rarity: Mythic Cost: {2}{U} If an opponent would mill one or more cards

Set: EX: Unseen Forces Type: Psychic Rarity: Ultra Rare Retreat cost: 0

Set: Time Spiral Timeshifted Type: Creature — Fish Rarity: Rare Cost: {U}{U} Dandân can't attack unless defending player controls an Island

Set: International Collectors’ Edition Type: Instant Rarity: Uncommon Cost: {G} Cast this spell only before the combat damage step

" —Donal Alloway

(It can't be blocked as long as defending player controls a Forest

you may put Nether Shadow into play

If that land is a Plains