Addendum

Addendum
[[File:{{#setmainimage:MTGA Addendum.png}}|70x70px]]
Ability Word
Introduced	Ravnica Allegiance
Last used	New Capenna Commander
Typical Text	Addendum — If you cast this spell during your main phase, ...
Statistics	10 cards 50% 30% 20%
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keyword:"Addendum"

Addendum is an ability word introduced in Ravnica Allegiance for the Azorius Senate.

Description

Spells with Addendum have additional or alternative effects if you cast the spell during your main phase. Addendum is found mostly on instants. The exception is Sentinel's Mark, which is an enchantment with flash.

Addendum designs were made in two forms: instants with main phase upside, and functional sorceries with weaker instant versions.

History

A similar cycle of "main phase matters" instants had previously been featured in Time Spiral. These were designed without the difference in mind, as they have a numerical value (one more card, one more damage) increased if cast in the main phase. A callback to this, Tail Swipe, plays closer to Addendum.

Addendum appeared as a one-off in the Streets of New Capenna Commander decks. Contractual Safeguard is unique amongst Addendum spells as the main phase effect occurs before the standard effect.

Examples

Example

Sphinx's Insight
Instant
Draw two cards.
Addendum — If you cast this spell during your main phase, you gain 2 life.

Rulings

• 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. For example, if you cast Sphinx's Insight during your main phase, you gain 2 life during its resolution, after you draw two cards.
• If a spell with an addendum ability is copied, the copy won't give you the addendum bonus. This is because the copy wasn't cast at all.