Voltron-style decks are particularly vulnerable to removal spells, since you're putting all your eggs in one basket
Time flows as the rivers do, toward an unknown sea
In terms of playability, this One Piece card game reminds us of Cardfight Vanguard, particularly the format around the mid-2010s
While Duelists use pen and paper and calculators to keep track of Life Points, the fast pace of the game also requires Duelists to make many calculations in their head, in order to best plan out their moves
SR Super Rare Magistus Theurgy X SPELL Quick-Play Target 1 "Magistus" monster you control
If you can combine it with Ephemerate, as the four-colour decks often do, you can set up some devastating turns where you just wipe the opponents board