Sphinx's Disciple, Mind Over Matter, and Grand Architect

Prerequisites

• Sphinx's Disciple on the battlefield
• Mind Over Matter on the battlefield
• Grand Architect on the battlefield
• You have at least one card in hand

Steps

1. Activate Grand Architect's second ability by tapping Sphinx's Disciple, adding that can only be spent to cast artifact spells or to activate abilities of artifacts
2. Activate Mind over Matter by discarding a card, untapping Sphinx's Disciple
3. Sphinx's Disciple triggers, causing you to draw a card
4. Repeat

Results

• Infinite draw triggers
• Infinite rummaging
• Infinite self-discard triggers
• Near-infinite colorless mana that can only be spent to activate abilities of artifacts
• Near-infinite colorless mana that can only be spent to cast artifact spells