You may reduce the resource cost to activate this Trap by G for each [Harbinger symbol] Clash card in your Oblivion.
Counter - Attack: Target attacking Clash card gets -6/-6. If that Clash card is defeated by this effect, you may activate the Portal.
| Detail | Value |
|---|---|
| Card type | Accessory |
| Subtype | Trap |
| Color | Green |
| Cost | GGGG6 |