Goat format ruling
Dark Core
Card effect (current official text)Discard 1 card, then target 1 face-up monster on the field; banish that target.
Rulings
- Discarding 1 card from your hand is a cost.
- This card targets. The target of Dark Core is selected at activation of Dark Core.
- If Ring of Destruction is chained to Dark Core, and destroys the monster targeted by Dark Core, then the effect of Dark Core disappears.
Rulings data courtesy of Format Library — formatlibrary.com. Spotted an inaccuracy? Flag it in the Goat forum — sourced change requests get reviewed.