Exile the top X cards of your library. You may cast instant and sorcery spells with mana value X or less from among them without paying their mana costs. Then put all cards exiled this way that weren't cast into your graveyard.
Fumiko the Lowblood has bushido X, where X is the number of attacking creatures. (Whenever this creature blocks or becomes blocked, it gets +X/+X until end of turn.)Creatures your opponents control attack each combat if able.
Cast this spell only during the declare blockers step.For each creature attacking you or a planeswalker you control, create a token that's a copy of that creature and that's blocking that creature. Exile those tokens at end of combat.
When Necromancer's Covenant enters, exile all creature cards from target player's graveyard, then create a 2/2 black Zombie creature token for each card exiled this way.Zombies you control have lifelink.
When Grasp of Fate enters, for each opponent, exile up to one target nonland permanent that player controls until Grasp of Fate leaves the battlefield. (Those permanents return under their owners' control.)
Living weapon (When this Equipment enters, create a 0/0 black Phyrexian Germ creature token, then attach this to it.)Equipped creature gets +1/+1.Whenever equipped creature deals combat damage to a player, that player loses half their life, rounded up.Equip
Return all artifact and enchantment cards from all graveyards to the battlefield under their owners' control. (Auras with nothing to enchant remain in graveyards.)
Enchant creatureEnchanted creature gets +2/+2, has intimidate, and can't attack you or planeswalkers you control. (A creature with intimidate can't be blocked except by artifact creatures and/or creatures that share a color with it.)
When Terastodon enters, you may destroy up to three target noncreature permanents. For each permanent put into a graveyard this way, its controller creates a 3/3 green Elephant creature token.
Prime Speaker Zegana enters with X +1/+1 counters on it, where X is the greatest power among other creatures you control.When Prime Speaker Zegana enters, draw cards equal to its power.
Hideaway 4 (When this land enters, look at the top four cards of your library, exile one face down, then put the rest on the bottom in a random order.)Mosswort Bridge enters tapped.: Add ., : You may play the exiled card without paying its mana cost if creatures you control have total power 10 or greater.
Mizzium Mortars deals 4 damage to target creature you don't control.Overload (You may cast this spell for its overload cost. If you do, change "target" in its text to "each.")
Constellation — Whenever Daxos's Torment or another enchantment you control enters, Daxos's Torment becomes a 5/5 Demon creature with flying and haste in addition to its other types until end of turn.
DeathtouchWhen Skullwinder enters, return target card from your graveyard to your hand, then choose an opponent. That player returns a card from their graveyard to their hand.
Whenever a player casts a spell, you may put a +1/+1 counter on Forgotten Ancient.At the beginning of your upkeep, you may move any number of +1/+1 counters from Forgotten Ancient onto other creatures.