The thing with any deck is you need a deck that naturally wants spells with colorless mana that are bombs when you resolve it. Resolving thirst is nice, but is it a 3 mana bomb worth running a limited land and paying 2-life to resolve? I don't think so. Tinker and S&T are and yawg will is....but those are 6 cards in a deck that already has spell protection and boseiju has 0 synergy with the rest of the plan. In dark times, boseiju can at least pay the colorless for your combo, it can force through tutors (up to 9!) to find part of a 2-card combo, those same tutors can FIND boseiju if needed to resolve something (like naturalize or something out of the sb to kill time vault through counters), and the deck runs more spells with colorless beyond the instants/sorceries (confidant, vial, priest, spirit, null rod, stony, RiP, maelstrom pulse....whatever you decide to go with). That has a lot of synergy.
I agree. I don't want to make another thirst deck.
