Like characters, they cant be used after exerting and get readied at the start of each players turn
What makes Ultra Magnus even better is that he can easily transform into the robot side Ultra Magnus, Tactician, a 7/7 behemoth that even has Ward 2
Its worse later when you need to crew, but crew 2 is very reasonable for a 5/5
Vandalblast and Disrupt Decorum are particularly exceptional reprints: they were both starting to trend quite high, so more copies being made readily available is a boon for players
Then, pay to activate its other ability and untap it
By extension, if some Pioneer players start tinkering with Dark Confidant, the formats midrange decks could move away from Unholy Annex