Helm of the Host

At the beginning of combat on your turn, create a token that’s a copy of equipped creature, except the token isn’t legendary if equipped creature is legendary. That token gains haste.
Equip

Stronghold Confessor

Kicker (You may pay an additional as you cast this spell.)
Menace (This creature can’t be blocked except by two or more creatures.)
If Stronghold Confessor was kicked, it enters the battlefield with two +1/+1 counters on it.

Blink of an Eye

Kicker (You may pay an additional as you cast this spell.)
Return target nonland permanent to its owner’s hand. If this spell was kicked, draw a card.

Adaptive Automaton

As Adaptive Automaton enters the battlefield, choose a creature type.
Adaptive Automaton is the chosen type in addition to its other types.
Other creatures you control of the chosen type get +1/+1.

Guardian Idol

Guardian Idol enters the battlefield tapped.
: Add .
: Guardian Idol becomes a 2/2 Golem artifact creature until end of turn.

Boggart Brute

Menace (This creature can’t be blocked except by two or more creatures.)

Rile

Rile deals 1 damage to target creature you control. That creature gains trample until end of turn.
Draw a card.

Blinding Fog

Prevent all damage that would be dealt to creatures this turn. Creatures you control gain hexproof until end of turn. (They can’t be the targets of spells or abilities your opponents control.)

Sangromancer

Flying
Whenever a creature an opponent controls dies, you may gain 3 life.
Whenever an opponent discards a card, you may gain 3 life.

Rout

You may cast Rout as though it had flash if you pay more to cast it. (You may cast it any time you could cast an instant.)
Destroy all creatures. They can’t be regenerated.

Kheru Mind-Eater

Menace
Whenever Kheru Mind-Eater deals combat damage to a player, that player exiles a card from their hand face down.
You may look at cards exiled with Kheru Mind-Eater, and you may play lands and cast spells from among those cards.

Wall of Forgotten Pharaohs

Defender
: Wall of Forgotten Pharaohs deals 1 damage to target player or planeswalker. Activate this ability only if you control a Desert or there is a Desert card in your graveyard.

Graven Abomination

Whenever Graven Abomination attacks, exile target card from defending player’s graveyard.

Grasp of the Hieromancer

Enchant creature
Enchanted creature gets +1/+1 and has “Whenever this creature attacks, tap target creature defending player controls.”

Putrefy

Destroy target artifact or creature. It can’t be regenerated.

Niblis of Frost

Flying
Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)
Whenever you cast an instant or sorcery spell, tap target creature an opponent controls. That creature doesn’t untap during its controller’s next untap step.

Maelstrom Pulse

Destroy target nonland permanent and all other permanents with the same name as that permanent.

Avatar of Woe

If there are ten or more creature cards total in all graveyards, this spell costs less to cast.
Fear (This creature can’t be blocked except by artifact creatures and/or black creatures.)
: Destroy target creature. It can’t be regenerated.

Containment Priest

Flash
If a nontoken creature would enter the battlefield and it wasn’t cast, exile it instead.

Mind Twist

Target player discards X cards at random.