Some abilities say once per turn. It makes sense that abilities like Gardevoir's Bright Heal (AOR #54) have this text, but I have several follow up questions:
1. What happens if Gardevoir leaves play and then enters play the same turn? Can I active Bright Heal, return to hand, play to bench, then activate Bright Heal again?
2. Abilities/Poke Powers like Unown's DARK (Undaunted #40): Can I play him, return him to hand, then play him again and active DARK both times?
3. What about going to the discard pile then back into play? Can I play Unown (AOR #30), activate Farewell Letter, replay him via Revive (BW #102) and then activate Farewell Letter again?