The Sixth Doctor + Romana II + Jace, Ingenious Mind-Mage

Prerequisites

• You control a mana-producing creature.
• You have not copied a spell using The Sixth Doctor this turn.

Steps

1. 1Cast Jace by paying .
2. 2The Sixth Doctor triggers, copying the Jace spell, with the copy being nonlegendary.
3. 3Resolve both Jace spells.
4. 4Activate a mana-producing creature by tapping it, adding at least .
5. 5Activate Romana II by paying and tapping it, creating a copy of the Jace token.
6. 6Activate a Jace token's second loyalty ability by putting a loyalty counter on it, untapping all creatures you control.
7. 7Repeat from step 4.

Effects

• Infinite mana creatures you control can produce
• Infinite untap of creatures you control