You want to play the right type of Pokmon against your opponents types to get a type advantage and do double or triple the amount of damage your Pokmon would normally do. Trainer cards (including Supporter, Stadium, and Item) are cards you can draw from your deck to gain an advantage
This color identity also lets you blend counter effects like Uncivil UnrestUncivil Unrest and Unspeakable SymbolUnspeakable Symbol, which I didn't even know existed, with a sacrifice theme powered by Carrion FeederCarrion Feeder and Viscera SeerViscera Seer
That way you can add to your artifact count without losing them to a stray Austere Command
Alliances does introduce cards that have an alternate cost to casting it -- exiling cards instead of mana
While this may look like the art for Strength of Will, its actually a comic, not an MTG card
For the third Mystical Archive card in the Collector Booster, it will always be a traditional foil uncommon Mystical Archive card
