Idris, Soul of the TARDIS + Grim Monolith + Illusionist's Bracers

Idris, Soul of the TARDIS

Grim Monolith

Illusionist's Bracers

How it works

1. Activate Idris using Grim Monolith's first ability by tapping it, adding CCC.
2. Activate Idris using Grim Monolith's second ability by paying 4.
3. Illusionist's Bracers triggers, copying Idris' ability.
4. Resolve the copy of Idris' ability, untapping it.
5. Activate Idris using Grim Monolith's first ability by tapping it, adding CCC.
6. Resolve the Idris ability from step 2, untapping it.
7. Repeat.