Reduce to Runechant (Yellow) [U-ARC089] (Arcane Rising Unlimited) Unlimited Rainbow Foil

Reduce to Runechant costs [1 Resource] less to play for each Runechant you control. Create a Runechant token. (It's an aura with "When you play an attack action card or attack with a weapon, destroy Runechant and deal 1 arcane damage to target opposing hero.")