When I use Palafin's "Zero to Hero" Ability, do I shuffle both Palafin and the Basic Finizen cards into my deck, or just the Stage 1 Palafin card since it says to shuffle "this card" into the deck?
Only the Palafin goes back into the deck. Finizen stays in play, going underneath the Palafin ex.
Source: Twilight Masquerade FAQ; TPCi Rules Team (2024-05-23)

Relevant cards

Note: All applicable cards may not be listed below.
SV6_60
SV6_60