Artifact Creature That Enters With +1/+1 Counter(s)
Initial Card State
All permanents on the battlefield (
Kuldotha Forgemaster without summoning sickness).
Steps
Activate
Cauldron of Souls by tapping it, targeting
Threefold Thunderhulk.
Activate
Clock of Omens by tapping
Threefold Thunderhulk and the other creature that enters with +1/+1 counter(s), untapping
Kuldotha Forgemaster.
Activate
Kuldotha Forgemaster by tapping it and sacrificing
Threefold Thunderhulk, the creature entering with +1/+1 counter(s) and another artifact.
When
Threefold Thunderhulk and the other creature die, their persist abilities trigger, returning them from your graveyard to the battlefield. The -1/-1 counters placed upon them will be removed by the +1/+1 counter(s) placed on them as they enter the battlefield.
When
Threefold Thunderhulk enters, it triggers, creating two 1/1 Gnome artifact creature tokens.
Resolve the
Kuldotha Forgemaster ability, searching your library for an artifact card and putting it onto the battlefield.
Activate
Clock of Omens by tapping two Gnomes, untapping
Cauldron of Souls.
Repeat.
Notes
The chosen creature that enters with +1/+1 counter(s) must either enter with two or more counters or have toughness 1 or greater. You may also include an anthem effect to boost toughness.
Results
Infinite LTB.
Infinite ETB.
Infinite death triggers.
Put all artifacts from your library onto the battlefield.