One with the void

Sorcery

Discard your hand.

Cycling

Hellbent - At the beginning of your upkeep, if you have no cards in hand, you may return this card and any number of other cards with the same name to your hand.

It's a joke, but kinda not...;)

Wild

Embodyment of Artifice

Artifact Creature - Construct

Flying, Trample

Ward - this creature's owner creates two treasure tokens.

Only use mana produced by artifacts to cast this spell.

5/5

Repeat, but make it red.

Assembly Line Overdrive

Kindred Sorcery - Assembly-Worker

Each artifact creature you control gets +X/+X until end of turn, where X is its power. Assembly workers you control gain trample and menace until end of turn. At the beginning of your next end step, sacrifice all artifact creatures you control.

Create a druid kindred spell with flashback.

Wookie Warrior

Creature - Wookie Warrior

Vigilance, Reach

When this creature enters, it deals 2 damage to target creature. If that creature doesn't have flying, this creature deals 4 damage instead.

3/3

More Star Wars I guess.

Heartburn Eidolon

Enchantment Creature - Spirit

Bestow

Afflict 2

Enchanted creature gets -2/-2 and has "At the beginning of each end step, you lose 1 life".

2/2

Let us see a white group slug card.

Heroes' Fate

Legendary Sorcery

Destroy up to three target creatures. For each creature destroyed this way, return it to the battlefield under your control. It's a 2/2 black zombie in addition to its other types.

Is the cycle done? Let's go with a lord for devils.

Liesa, Mooncrazed

Legendary Creature - Angel Horror

Flying, Vigilance

As long as you control a nonbasic land, creatures you control have undying.

, remove a counter from a permanent you control: Each opponent sacrifices a permanent that shares a card type with the permanent you removed the counter from. If they can't, you draw a card and gain 3 life.

6/7

Liesa against Ormendahl? Oh yeah, baby. Create a werewolf in the middle of that conflict.

Koh and Horobi, Face of Finality

Legendary Creature - Spirit Horror

Flying, Menace

Whenever a creature becomes the target of a spell or ability, destroy it.

Sacrifice a creature, pay 3 life: This creature gains indestructible until end of turn.

6/6

Wild

Murderous Plot

Enchantment

: Put a Plot counter on Deadly Designs. Any player may activate this ability.

Pay 2 life, remove X plot counters from this enchantment: Target creature gets -X/-X until end of turn.

Fine on its own, but secretly (or not so secretly) broken in Horobi, Death's Wail.

Create a card for an obscure commander you play or would consider playing.

Hm...

Seshiro, the Avoided

Legendary Creature - Snake Eldrazi Monk

Vigilance, Reach, Deathtouch

Other creatures you control that are colourless or snakes have deathtouch and "Whenever this creature deals combat damage to a planeswalker, destroy that permanent".

3/4

That was fun. Repeat.

Crested Cloudgoat

Creature - Goat

Vigilance, Flying, Lifelink, Haste

Whenever this creature attacks, target opponent creatures two 1/1 white kithkin creature tokens.

Giants you control and other goats you control get +1/+1 for each kithkin your opponents control.

4/4

Wild

Aether Grasp

Sorcery

You get X .

Draw a card. If X was 6 or greater, draw two cards instead.

Create a cloudgoat.

You're welcome. I really liked that synergy between your commanders and the apostles. Pretty neat!

Adept of Calamity

Creature - Elemental Cleric

Whenever this creature enters or attacks, add one mana of any colour.

, discard a card: Draw two cards.

1/2

Create a horse.