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We have to put counters on it when we counter a spell, and when it gets three or more counters you sacrifice the Decreeexcept you dont, because we arent putting those counters on there

If this face-up card in its owner's control leaves the field because of an opponent's card effect: You can Special Summon both 1 "Valkyrion the Magna Warrior" and 1 "Berserkion the Electromagna Warrior" from your hand and/or Deck, ignoring their Summoning conditions

Drampa can be obtained from Celestial Guardians: Solgaleo pack in the Celestial Guardians set

Safe Passage saves both you and your creatures

Tapping and otherwise locking down your opponents creatures definitely fits into the theme of slowing them down