We already have Cosmic Cyclone for years, which not only have better effect, but also, the 1000 LP cost actually benefits some skills in this game.
MST is actually long overdue at this point, we don't absolutely need it anymore, unless you play something like Bujin for fun, who would appreciate an easier to use backrow removal like MST.
Nah, MST fine for now. Not many spell and trap floats or have graveyard effect right now and not all deck really wanted their LP reduced by 1k in 4k LP format anyway
Is it that much? Just 2-3 decks use that tho, CC also got limited at 3. You can simply run it if your deck got limited or simply just play it along CC.
Nah in this meta we need twin twister. Compared to this card:
-CC BANISH CARD, not to mention triggering several skill
-NIGHT BEAM destroy backrow without triggering it
-Galaxy cyclone could destroy 2 backrow card. One Face down and on the next turn, face up.
The future:
Twin twister destroy 2 backrow cards, with cost of DISCARDING one card ( GY speedup and/or effect)
MST simply got left behind