Sacrifice a creature: Target player mills cards equal to the sacrificed creature's power.

Sacrifice a creature: Add {C}{C}.

Sacrifice a creature: Add one mana of any color.

Equipped creature has hexproof and haste. (It can't be the target of spells or abilities your opponents control. It can attack and {T} no matter when it came under your control.) Equip {1} ({1}: Attach to target creature you control. Equip only as a sorcery.)

Equipped creature has nonbasic landwalk. (It can't be blocked as long as defending player controls a nonbasic land.) Equip {2}

({T}: Add {R}.)

({T}: Add {W}.)

{T}: Add {R} or {W}. {R/W}{R/W}{R/W}{R/W}, {T}, Sacrifice this artifact: Draw two cards.

Spells you cast cost {1} less to cast for each card with the same name as that spell in your graveyard.

{T}: Add {W} or {B}. {W/B}{W/B}{W/B}{W/B}, {T}, Sacrifice this artifact: Draw two cards.

Black spells you cast cost {1} less to cast.

White spells you cast cost {1} less to cast.

Flying, trample Whenever one or more opponents each lose exactly 1 life, put a +1/+1 counter on Ob Nixilis. Exile the top card of your library. Until your next end step, you may play that card.

Landfall — Whenever a land you control enters, you may have target player lose 3 life. If you do, put three +1/+1 counters on Ob Nixilis.

{T}: Add one mana of any color. At the beginning of your upkeep, put a night counter on this artifact. Then if it has eight or more night counters on it, remove all of them and create eight colorless snow artifact tokens named Replicated Ring with "{T}: Add one mana of any color."

Equipped creature gets +1/+1. Whenever equipped creature attacks, you may search your library for a basic land card, put it onto the battlefield tapped, then shuffle. Equip {2}

Equipped creature has haste. (It can attack and {T} no matter when it came under your control.) At the beginning of your upkeep, put a +1/+1 counter on equipped creature if it's red. Equip {1} ({1}: Attach to target creature you control. Equip only as a sorcery.)

{T}: Add {C}{C}.

{T}: Add one mana of any color in your commander's color identity.

{1}, {T}: Add {R}{W}.

{1}, {T}: Add {W}{B}.