+Artifact, +proliferate (11)
When Contagion Clasp enters, put a -1/-1 counter on target creature.
, : Proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)
When Contagion Engine enters, put a -1/-1 counter on each creature target player controls.
, : Proliferate twice. (Choose any number of permanents and/or players, then give each another counter of each kind already there. Then do it again.)
Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.)
When Core Prowler dies, proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)
, : Move a counter from one permanent onto another. If the second permanent refers to any kind of counter, the moved counter becomes one of those counters. Otherwise, it becomes a +1/+1 counter.
, : Put a +1/+1 counter on target creature.
When Filigree Vector enters, put a +1/+1 counter on each of any number of target creatures and a charge counter on each of any number of target artifacts.
, , Sacrifice another artifact: Proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)
Glistening Sphere enters tapped.
When Glistening Sphere enters, proliferate.
: Add one mana of any color.
Corrupted — : Add three mana of any one color. Activate only if an opponent has three or more poison counters.
Planeswalkers you control have "0: Proliferate" and "–12: Take an extra turn after this one."
Whenever you cast a noncreature spell, choose a counter on target permanent. Put an additional counter of that kind on that permanent.
Flying
When Recon Craft Theta enters, create a 0/0 blue Alien creature token. Put a +1/+1 counter on it.
Whenever Recon Craft Theta attacks, proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)
Crew 2
, Pay 1 life: Destroy target permanent you own.
, Pay 2 life: Add one mana of any color.
, Pay 3 life: Proliferate.
, Pay 4 life: Draw a card.
: Untap Staff of Compleation.
Equipped creature gets +2/+2 and has protection from white and from blue.
Whenever equipped creature deals combat damage to a player, put a +1/+1 counter on a creature you control, then proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)
Equip
, Sacrifice an artifact: Proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)
Gatherer works better in the Companion app!
, Pay 1 life: Destroy target permanent you own., Pay 2 life: Add one mana of any color., Pay 3 life: Proliferate., Pay 4 life: Draw a card.
: Untap Staff of Compleation.