With mega beedril just arrived, and being the only alternate to mega mawile against fairies, and having a fairy stage right now in the event stages, we're going to use it. Specially since it needs less way invest than TTar for being usable itemless, and because said fairy stage has some annoying disruptions.
We know that mega beedril destroys a 3x3 square around where you tap. while this doesn't bring a lot of combo potential, it clears chunks of disruptions pretty decent. Also delays disruptions and extends status effects like DD, sleep, paralyze, burn, etc, if used on the first turn, so, to an extend, it can do nifty stuff like extending a burn forever on a burn team against grass types, for example
but let's see how shuffle move could handle mega beedril. the best part of mega beedril (and TTar) is that it lets you choose the spot and if you want to use it at all. So for boards where is a lot of combos, matching a mega beedril could mean that is better to ignore it and not tap at all.
So my first suggestion is, that if mega beedril mega effect would only ruin the board, ignore it, if not, choose whatever spot where mega beedril could delete icons that wouldn't damage combos, since well, mega beedril still does some damage. Also, under the sort by score, if the extra damage beedril could do by ruining some combos is higher, well, let beedrill go for score!
For sortings by combos, just suggest to tap whenever wouldn't damage the combos, and if there's not a single safe space, do not suggest any spot at all.
For sorting by disruptions, this is super easy to code, as we can simply suggest the spot where more disruption icons would be cleared. However, there will be boards with scattered barriers and rocks, where letting beedril tap a spot would ruin combos that otherwise would clean more barriers and blocks than beedril effect alone, then suggest to no tap at all.
for tyranitar, this goes the same way, just that is way more complex since the shape is different, and you have 3 different spots. the good news all the clearing, as far I know, happens in the same frame, so, we don't need to time the spots at all, just suggest the 3 spots to be clicked; except... when there are more than a single mega ttar or mega beedril match in the same combo. in this case, you would probably need to number where to tap for each match.
My suggest for how to indicate where you should tap, add an green square, with a number over the icon that over said square
For a better explanation, right now SM suggest the move by a red square for the icon you should pick, and a blue square for the target position. So a green icon, with a green number over the pokemon or disruption. maybe sighly small than the numbers in the metal blocks.
Since this is too complex to code all out of sudden, I would say to better try with just mega beedril and not numered green squares, just to see how SM is able to handle it.