pokemon trading card game rules pdf Black and White Instruction Manual Guide Pokemon Master Trainer Rules

The downside is your turns will often consist of just playing one spell a turn

Because EX Pachirisu gets a pretty hefty buff once attached with a Tool card, the deck is trying to maximise the chances that one of the Tools will be in your opening hand (by playing multiple types) alongside cards like Pok Ball and Potion (to add a second EX Pachirisu to your hand and to heal whichever one you currently have on the board)

I do not agree with your point about OPAgent not needing to be immediately interacted with-because I do think decks where tutoring is a central part in the game plan will be destroyed by this card

Overall this doesn't seem all that great to me, but it might fill a hole in a few decks