There was a sweet spot for balancing the "hero" decks in the original Archenemy that often required a little bit of iteration to nail down, but now you can go straight into balanced four-player Archenemy games right of the box
Since siege battles force an opponent to protect them, we can safely bet therell be battles that task their own caster with defending them
Only one expansion can be printed at a time
His evasive keyword gives him moderate protection from opposing characters targeting him, and his What Comes Next ability makes him a constant irritation to opposing players as the moment he hits the field Genie lets his illumineer draw a card immedietely
There may be times when a 1/1 flier is better than this 1/2 flier, but its still objectively worse and less effective overall
Azure Beastbinder can make a creature into a 2/2 with no abilities (and can shut down artifacts and planeswalkers as well) when it attacks, Cityscape Leveler can destroy any nonland permanent on the battlefield on attack, and Silverwing Squadron gives you 2/2 Knight tokens for each opponent you have to help build a large board state