Double strike, indestructibleOketra the True can't attack or block unless you control at least three other creatures.: Create a 1/1 white Warrior creature token with vigilance.
Enchant playerAt the beginning of enchanted player's upkeep, that player sacrifices a creature or planeswalker of their choice. If the player can't, they lose 5 life.
Target creature you control gains hexproof until end of turn. Remove all -1/-1 counters from it. (A creature with hexproof can't be the target of spells or abilities your opponents control.)
Whenever an opponent activates an ability of an artifact, creature, or land on the battlefield, if it isn't a mana ability, Harsh Mentor deals 2 damage to that player.
Enchant creature you controlWhen Cartouche of Solidarity enters, create a 1/1 white Warrior creature token with vigilance.Enchanted creature gets +1/+1 and has first strike. (It deals combat damage before creatures without first strike.)
Flying, indestructibleKefnet the Mindful can't attack or block unless you have seven or more cards in hand.: Draw a card, then you may return a land you control to its owner's hand.
Other Cats you control get +1/+1 and have lifelink. (Damage dealt by those creatures also causes you to gain that much life.)When this creature enters, create two 1/1 white Cat creature tokens with lifelink.
End the turn. (Exile all spells and abilities from the stack, including this card. The player whose turn it is discards down to their maximum hand size. Damage wears off, and "this turn" and "until end of turn" effects end.)At the beginning of your next end step, you lose the game.