Ravnica: Clue Edition

Instant

Target creature gets -4/-0 until end of turn.
Draw a card.
Addendum — If you cast this spell during your main phase, tap that creature and it doesn't untap during its controller's next untap step.

Code of Constraint

Ravnica Remastered

Target creature gets +2/+2 until end of turn.
Addendum — If you cast this spell during your main phase, that creature gains flying until end of turn.

Arrester's Zeal

Summary Judgment deals 3 damage to target tapped creature.
Addendum — If you cast this spell during your main phase, it deals 5 damage instead.

Summary Judgment

Creatures you control gain indestructible until end of turn.
Addendum — If you cast this spell during your main phase, put a +1/+1 counter on each of those creatures and they gain vigilance until end of turn.

Unbreakable Formation

Game Night: Free-for-All

Draw three cards.
Addendum — If you cast this spell during your main phase, instead scry 3, then draw three cards.

Precognitive Perception

New Capenna Commander Promos

Addendum — If you cast this spell during your main phase, put a shield counter on a creature you control. (If it would be dealt damage or destroyed, remove a shield counter from it instead.)
Choose a kind of counter on a creature you control. Put a counter of that kind on each other creature you control.

Contractual Safeguard

Ravnica Allegiance

Enchantment — Aura

Flash
Enchant creature
Enchanted creature gets +1/+2 and has vigilance.
Addendum — When this Aura enters, if you cast it during your main phase, enchanted creature gains lifelink until end of turn.

Sentinel's Mark

Return target creature to its owner's hand.
Addendum — If you cast this spell during your main phase, draw a card.

Arrester's Admonition

Ravnica Allegiance Promos

Each player shuffles their hand and graveyard into their library, then draws seven cards. Exile Emergency Powers.
Addendum — If you cast this spell during your main phase, you may put a permanent card with mana value 7 or less from your hand onto the battlefield.

Emergency Powers

Draw two cards.
Addendum — If you cast this spell during your main phase, you gain 2 life.