The checklist separates the 179 main-set cards from 58 secret or high-rarity cards, including rarity groups such as SR, SAR, AR, UR
So, to attack , you need to have the right amount of Energy
Promo Info EXTRA BOOSTER DIGIMON LIBERATOR [EX-07] CLOSECLOSE EX7-033 C Digimon Lv.4 Monochromon Color Green Form Champion Attribute Data Type Ankylosaur/NSp DP 4000 Cost 4 Digivolve Cost 1 1 from Lv.3 Digivolve Cost 2 - Upper Text [Digivolve] Lv.3 w/[NSp] trait: Cost 1 (Rule) Trait: Has [Dinosaur] Type
We don't have an official announcement or any timeframe though, so fans will just have to wait for the time being
Everyone Xyz Summons and gets rid of them
The setup for this often consists of landing something like Howling Mine or Sylvan Library, and baiting with other spells that must be dealt with beforehand