- You place a Counter for each monster effect that resolves, even if more than one effect is activated in the same Chain.
- Powersink Stone’s effect to remove its Spellstone Counters can activate multiple times during the End Phase if monster effects continue to place Counters on it.
- If Light and Darkness Dragon is on the field and Powersink Stone gets its second Spellstone Counter, Light and Darkness Dragon’s effect will be negated and its ATK and DEF will return to the original values.
- You place the Spellstone Counter when the monster’s effect finishes resolving. That is, when the effect initially activates, do not yet place the Spellstone Counter.