The Sword of Boundless Energy

Cost: 3
Faction: Aceus/Yellow
Type: Mythic Supply - Continuous 
Card Effect Text:

[On Play]: Target a Unit and supply this card to it.

Non-Swift – [Cost 2]: Supply this to a unit.

A unit supplied with this gets; +2 atk. [Restless]: Doesn’t to tax attack; this doesn’t give extra attacks. [Urgency]: May attack/taxed itself the turn it enters.

Printings:
MLVG/MLVG SE (Malverna's Revenge)
KGM (Kingdoms)
SE = Second Edition

Rulings
1. Its cost effect counts as a re-supply cost.
2. Continuous supplies do not enter already supplied to a unit, you must pay its supply cost in order to supply it to a unit.
3. Continuous supplies – as the name would suggest – stick around when a normal supply would normally go to the grave with the unit it was attached to.