Weve got three legendary Slivers to choose from: Sliver Legion, Sliver Overlord, and Sliver Queen
When paired with black staples like Bolas Citadel, Rowan can create huge gains in an instant
The War Doctor can become a potent attacker depending on how many cards you manage to phase out from either side of the field
Apart from Coruscation Mage, which is super similar but a Bloomburrow Otter Wizard rather than a Final Fantasy black mage Wizard, we have a bunch of cards that not only make Wizard tokens but also are noncreature spells, so when we cast them, they'll trigger any of the black mage Wizards we already have on the battlefield
To determine the total cost of a spell, start with the mana cost or alternative cost you're paying (such as an escape cost), add any cost increases, then apply any cost reductions
But in the end I managed to cast [scryfall]Miraris Wake[/scryfall] to double my mana (again) and after that it was just the matter of rounds before I beat them all dead