If other "True King" and "True Draco" monsters you control would be destroyed by battle or by card effect
Because in this game, advancing the plot too far causes you to permanently miss sidequests, great idea right
Promo Info BOOSTER DIMENSIONAL PHASE [BT-11] CLOSECLOSE BT11-091 R Tamer Parallel Rare Taiga Color Green Form - Attribute - Type - DP - Cost 3 Digivolve Cost 1 - Digivolve Cost 2 - Upper Text [Your Turn] All of your Digimon get +1000 DP
Hermetic Study/Psionic Gift ( Saga/Legacy/Destiny & Odyssey/Torment/Judgment ) In both sets, these cards served a similar purpose: kill small creatures or allow your smaller creatures to threaten large ones in combat (for instance, Hermetic Study would allow your 2/2 creature to attack into a 3/3 creature with the threat of your third Hermetic Studied creature sweeping away the 3/3 should it block)
So, unlike other cards where you need three to have a playset at max rarity, just one will do the trick
They have a custom houserule (that they call Mattys Map) that allows the player to look at their prizes when they search their deck for the first time