Spell-casting and Interrupts

This is a new combat action I added to give potential interesting tactics in regards to spell-casters.

SPELLS AND INTERRUPTS

• During combat, on your turn, you can "ready an action" specifically to trigger when the designated target casts a spell on his turn.
• If the target declares an action "casting a spell", your attack comes before the actual resolution of the spell.
• You attack normally. If you hit and do damage, the caster needs to do a DC10 Save (CON). If he fails, the spell is not cast (but not lost either). If he succeeds, he casts the spell normally after your attack.