Oracle

Instant 

Choose one -
- Counter target spell if it's red.
- Destroy target permanent if it's red.

Officiele rulings

10/4/2004
The decision to counter a spell or destroy a permanent is a decision made on announcement before the target is selected. If the spell is redirected, this mode can’t be changed, so only targets of the selected type are valid.

6/8/2016
Hydroblast can target any spell or permanent, not just a red one. It checks the color of the target only on resolution.

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