Since most of these monsters also have other effects and quirks that make them good for more than killing stuff, a high-rank monster that can detach a material to kill any card, face-up or face-down, frontrow or backrow, whatever, once per turn, would probably end up ok
Open the box
Promo Info Tamer Battle Pack 27 WINNER CLOSECLOSE EX5-048 U Digimon Lv.5 Parallel Rare Etemon Color Black Yellow Form Ultimate Attribute Virus Type Puppet DP 7000 Cost 7 Digivolve Cost 1 4 from Lv.4 Digivolve Cost 2 4 from Lv.4 Upper Text [Digivolve] Lv.4 w/[Sukamon] in name: Cost 3 [On Play][When Digivolving] Until the end of your opponent's turn, 1 of your opponent's Digimon gets -3000 DP and gains "[Start of Your Main Phase] This Digimon attacks." Lower Text [Opponent's Turn][Once Per Turn] When an opponent's Digimon attacks, you may reveal the top 3 cards of your deck
Legacy Energy will provide every type of Energy, though only one at a time, but its most useful utility is in its ability to reduce the amount of Prize Cards your opponent can take from the knocked-out Pokemon its attached to
Use Indoraptor's power from when it was last on the battlefield to determine how much damage it deals to the chosen player if they don't sacrifice a nontoken creature
but there aren't any brand-new mechanics we've not seen before beyond individual character abilities
