Magda, Brazen Outlaw + Clock of Omens + Thran Forge
Combo result
Infinite colored mana at your next untap phase. Prerequisites
All permanents on the battlefield. available.
Urza, Prince of Kroog + Timestream Navigator + Thran Forge
Combo result
Infinite turns. Prerequisites
All permanents on the battlefield. You have the city's blessing. Timestream Navigator does not have summoning sickness. {10}{U}{U} available each turn.