Knight of Autumn [Guilds of Ravnica Prerelease Promos] SWSH048 You can only Synchro Summon

You can only Synchro Summon "Accel Synchron(s)" once per turn

Set: Diamond & Pearl: Great Encounters Type: Metal Rarity: Holo Rare Retreat cost: 2

you may exile all the cards from your hand

Set: Number Hunters Card type: Effect Monster Rarity: Super Rare Attack: 1600 Defense: 1200 You can only use the effect of "Gimmick Puppet Egg Head" once per turn

Leviathan enters the battlefield tapped and doesn't untap during your untap step

Knight of Autumn [Guilds of Ravnica Prerelease Promos] SWSH048 You can only Synchro SummonSet: Guilds of Ravnica Prerelease Promos Type: Creature Dryad Knight Rarity: Rare Cost: {1}{G}{W} When Knight of Autumn enters the battlefield, choose one Put two +1 +1 counters on Knight of Autumn. Destroy target artifact or enchantment. You gain 4 life.