Morphling + Illusionist's Bracers + Cryptolith Rite

Morphling

Illusionist's Bracers

Cryptolith Rite

How it works

1. Activate Morphling by tapping it, adding .
2. Activate Morphling's first ability by paying .
3. Illusionist's Bracers triggers, copying Morphling's ability.
4. Resolve the copy of Morphling's ability, untapping it.
5. Activate Morphling by tapping it, adding one mana of any color.
6. Resolve Morphling's ability from step 2, untapping it.
7. Repeat.