Warhammer 40,000 Commander

Nurgle's Rot

Plaguebearer of Nurgle

Enchantment — Aura

Enchant creature an opponent controls
When enchanted creature dies, return this card to its owner's hand and you create a 1/3 black Demon creature token named Plaguebearer of Nurgle.

Enchantment — Saga

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)
I — For each opponent, gain control of up to one target nonlegendary creature that player controls for as long as this Saga remains on the battlefield.
II — Draw a card for each creature you control but don't own.
III — Starting with you, each player chooses a creature. Destroy each creature chosen this way.

The Horus Heresy

Artifact

{T}: Add one mana of any color in your commander's color identity.
Sacrifice this artifact: Draw a card.

Commander's Sphere

Gilded Lotus

Artifact — Equipment

Whenever equipped creature deals combat damage to a player, you may draw two cards. If you do, discard a card.
Equip {1} ({1}: Attach to target creature you control. Equip only as a sorcery.)