You start with 20 life and the first 19 of those have no impact on the game as such and so you have an abundant pile of resources at your disposal
Meanwhile, Fortisphere allowed for a free card draw when played and could be discarded by paying one ink to give a character the Bodyguard trait
There are a ton of other combinations, like 13 and Ryan Sinclair or Bill Potts, but they're frankly all less synergistic than The Thirteenth Doctor and Yasmin Khan , so stick with these two
Your first priorities should be establishing a functioning manabase, preferably basic lands, but sometimes you have to chain those Tundras and Volcanic Islands together in order to enable your deck to work properly
Although you can technically also win if your opponent runs out of cards in their deck, which automatically eliminates them
Its super cheap for the investment, and I sure as hell dont want one of those barreling down at me