Justice Barrier (NWE-026 N) [A New World Emerges]

[Quickcast] Target entity gains [Eternal] and "Whenever a J/resonator's effect deals damage to this card >>> This card deals that much damage to the source of the damage." until end of turn. If you control a ruler under contract, draw a card. [Mastery] "Justice" (You may rest a recovered card named "Justice" you control rather than pay this card's cost.)