Phoenix Feather

Cost: 1
Faction: Aceus/Yellow
Type: Scroll - Swift
ATK/HP: None
Morale: None
Card Effect Text: 
Target a unit you control, it becomes rested (un-exhausted, resting doesn’t give extra attacks) & then either its hp heals or prevent its next source of damage. 

[Optional Cost]: Pay an extra power; If you do, this gets the additional effect – “Target  an enemy unit on the battlefield or kingdom. Move your unit to the battlefield & it attacks the enemy unit but stays rested.” (This is an extra attack.)

Printings: Set Zero/STZO; Set Zero Reprint/STZO-SE; & Malverna's Revenge/MLVG

Rulings:
1. STZO/STZO SE Printings of this card used to specify kingdom and did not force your unit to move to the battlefield. 
2. This resolves as combat.