Scuttling Sliver + Trazyn the Infinite + Dreamstone Hedron + Runed Stalactite

Scuttling Sliver

Trazyn the Infinite

Dreamstone Hedron

Runed Stalactite

How it works

1. Activate Trazyn using Dreamstone Hedron's ability by tapping it, adding CCC.
2. Activate Trazyn by paying 2, untapping it.
3. Repeat.

Trazyn the Infinite serves as the centerpiece of this interaction by inheriting the activated abilities of all artifacts in your graveyard, most notably Dreamstone Hedron’s mana-producing capability. Because Runed Stalactite is equipped to Trazyn, it makes him every creature type, granting him eligibility for Scuttling Sliver's passive ability that allows Slivers to untap for `{2}`. By using Dreamstone Hedron's copied ability to tap for three colorless mana, you can feed two of that mana right back into Trazyn's borrowed Scuttling Sliver untap ability, generating an infinite surplus of colorless mana.