
Summary Judgment deals 3 damage to target tapped creature.
Addendum — If you cast this spell during your main phase, it deals 5 damage instead.
Any challenge to Azorius authority is met with swift and potent retribution.
Illustrated by Deruchenko Alexander · Ravnica Allegiance · #24
2024-01-12
Addendum abilities of instant spells apply while the spell is resolving, not immediately after casting it. If the spell is countered, you don't get the addendum bonus.
2024-01-12
If an effect copies a spell with an addendum ability while it's on the stack, the copy wasn't cast at all, so you won't get the addendum bonus.