You can use them to label zones or game pieces like a spindown that tracks your commander tax, experience counters, what have you
Its best bet is probably in Pioneer, which doesn't have great wraths and has cards like Nykthos, Shrine to Nyx and Yorion, Sky Nomad that synergize with battles
Urzas Saga doesnt ask for too much work from you to make strong, especially given that cards like Sol Ring are Commander staples, but in decks with tons of cheap Artifacts, its an elite addition
Hell only be able to keep one of them because of the legend rule, but this means that he can keep the version of Deadpool that now has menace and myriad and continue to steal the best text boxes every turn
For as long as that land has a blight counter on it, it loses all land types and abilities and has Tap: Add C. Whenever you tap a land for C, add an additional C
Each card that depicts one of those types of characters needed to capture them at a specific point in time of their story