Id love to see this card in the magical christmas land scenario as follows: turn one and two ramp, turn three Branching Evolution, turn four Parallel Lives, turn five Doubling Season, turn six Body of Research
Interestingly, part of the reason for this is from attempts to keep the Dive Ball relevant after Gen III (it originally worked better on Pokmon encountered while diving, which isn't a mechanic outside of RSE and their own remakes)
3 Wickerwing Effigy Wickerwing Effigy allows you to cast creatures from the top of your library but turns them into 1/1 black birds
Like most Pokmon cards, the value of Ho-Oh-GX 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 (Burning Shadows)
Thats pretty good, providing a way to quickly ramp your available ink for bigger and better cards for a fairly low cost