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'At the beginning of your upkeep, choose target opponent. Until end of turn, that player can't cast spells, you may look at the top card of their library any time,...
'Choose target creature. You lose 2 life. Until end of turn, that creature gains "When this creature dies, return it to the battlefield tapped under its owner's control."
'Afflict 1 (Whenever this creature becomes blocked, defending player loses 1 life.)
'When this creature enters, you may have target creature get +X/+X until end of turn, where X is this creature's power. Eternalize {4}{G}{G} ({4}{G}{G}, Exile this card from your graveyard:...
'Protection from Assassins Other Knights you control get +2/+2 and have protection from Assassins. When Haytham Kenway enters, for each opponent, exile up to one target creature that player controls...
'When this creature enters, you may have target creature get +X/+X until end of turn, where X is this creature's power. Eternalize {4}{G}{G} ({4}{G}{G}, Exile this card from your graveyard:...
'Creatures you control have "{T}: Add one mana of any color."
'Protection from Assassins Other Knights you control get +2/+2 and have protection from Assassins. When Haytham Kenway enters, for each opponent, exile up to one target creature that player controls...
'Flying Whenever Rith deals combat damage to a player, you may pay {2}{G}. If you do, choose a color, then create a 1/1 green Saproling creature token for each permanent...
'Flying Whenever Rith deals combat damage to a player, you may pay {2}{G}. If you do, choose a color, then create a 1/1 green Saproling creature token for each permanent...
'Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)
'When this enchantment enters, you become the monarch. At the beginning of your upkeep, create a 3/1 red Knight creature token. Then if you're the monarch, this enchantment deals X...