Infinite +1/+1 counters on a creatureInfinite charge counters on artifacts you castInfinite +1/+1 counters on artifact creatures you cast
How it works
Animate Solar Array, if needed.
Cast Pemmin's Aura by paying its mana cost, attaching it to Solar Array.
Activate Solar Array by tapping it, adding and causing the next artifact spell you cast this turn to have sunburst.
Activate Pemmin's Aura by paying , untapping Solar Array.
Repeat from step 3 as desired.
Cast any artifact spell, triggering its sunburst ability an infinite number of times, either putting infinite +1/+1 counters on charge counters on the artifact.
This clever little engine transforms ordinary mana generation into an overwhelming cascade of counters by turning a simple land-or-artifact into a powerhouse. First, you use Ensoul Artifact to give Solar Array the punch of a 5/5 creature, making it a legal and robust host for Pemmin's Aura. Once the Aura is attached, its first untap ability lets you continuously tap Solar Array for mana while untapping it for the exact same cost, generating an infinite supply of blue mana. Because Solar Array's triggered ability applies to any artifact spell you subsequently cast, you can then channel that setup to feed your sunburst creatures an infinite number of counters.