Fifth Edition · 5ED · uncommon
Instant
wotc · 2016-06-08
Pyroblast can target any spell or permanent, not just a blue one. It checks the color of the target only on resolution.
wotc · 2004-10-04
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.

SS3 · 5
10.01 €