Red and black both have creatures that can be sacrificed for mana acceleration, such as Skirk Prospector, but you'll want to limit those creatures in favor of more reliable mana sources and larger creatures that Kaalia can take advantage of
That said, Satoru Umezawa makes for a great Commander on its own, as it gives all creatures in hand ninjutsu for two generic mana, one blue mana, and one black mana
I didnt even know you could open a foil and a non-foil version of the same rare, but apparently its possible
Future Sight, Magus of the Future, and Bolas' Citadel are among the only cards that grant this ability
Big Score/Unexpected Windfall [c]Big Score[/c] (or [c]Unexpected Windfall[/c], which is basically the same card) are like the previous entry, but with the additional upside of creating two Treasure tokens
Granted, there are practically zero penalties for losing, so theres no reason not to just concede and hope for better luck next time, but that random element seems to end most games before they can even start