Focus grading submissions on: Cards worth $50+ raw that could grade PSA 9-10 Vintage holos from Base Set, Jungle, Fossil, Team Rocket Modern chase cards from in-demand sets (Prismatic Evolutions, Evolving Skies, etc.) Cards with centering and surface quality that suggest a 9+ Dont grade: Common cards worth under $20 raw (grading cost exceeds the value add) Cards with visible damage, whitening, or off-centering Bulk modern cards, sell these raw Authentication for Raw Cards Establish trust by showing condition on camera (front, back, centering, edges), using consistent lighting, being upfront about flaws, and offering a return policy for condition disputes
and Ratigan's Party for a burst of value with minimal risk
Like most Pokmon cards, the value of Hydreigon depends on a few consistent factors: its rarity, the printing and finish (regular or foil), its physical condition, and the set it was printed in (Phantom Forces)
Stick to the guidelines I outlined above and you'll do just fine
+1/+0 and First Strike always plays pretty well in terms of helping a creature win combat, and its nice to have Scry 1 tacked on