You should only play Intervention Pact in decks built to force another non-white player to cast the card, using something like Hive Mind to force the upkeep trigger on someone else
The only downside is that someone else is drawing cards as well (and this time you are targeting said opponent)
You can filter the trade binder in the same manner as your collection to find a specific item
You must follow all normal timing rules for a card you play with Quintorius Kand's last ability and, if it's a spell, you must pay its costs to cast it
A master of light and shadow with that Aethershield Artificer twinkle in the eye, those Goblin Researchers hands, and the bad ass attitude of Dovin's Veto and Fairgrounds Warden, his characters all have this feeling of being caught in the middle of something awesome, but pausing, for a sec, looking at you through the frame of the card and asking you to check out whats next