So you're like me, you have a huge Pokmon card collection, some old, some modern, and some graded
A Giada deck wants to always be a threat, and with how big stats can get you can get amazing blockers easily
Creature flips are both the most broadly accessible, and restrictive in terms of deckbuilding, of this general gameplan while there are an absolute plethora of great options, and you nearly always have access to something available for Polymorph targeting, cutting down on creatures is a tough call, and oftentimes you'll need to truly lean into some other gameplan, as is the case with Urza in artifact-based stax, or spellslinging control
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[/spoiler] [spoiler='Rune of the Moon'] Lore: Once per turn, when a monster(s) is Special Summoned: You can change the Special Summoned monster(s) to face-down Defense Position
In particular, both Qualladin from Kalos and Brionne from Alola are two that show their unpopularity through the TCG, only having a couple of cards to their name and last getting a card in the Sun & Moon era