The ability of Celestial Unicorn triggers just once for each life-gaining event, whether it's 1 life from Dazzling Angel or 4 life from Apothecary Stomper.
2021-07-23
wotc
In a Two-Headed Giant game, life gained by your teammate won't cause Celestial Unicorn's ability to trigger, even though it caused your team's life total to increase.
2021-07-23
wotc
If you gain an amount of life "for each" of something or "equal to the number" of something, that life is gained as one event and Celestial Unicorn's ability triggers only once.
2021-07-23
wotc
If Celestial Unicorn is dealt lethal damage at the same time that you gain life, it won't receive a counter from its ability in time to save it.
2021-07-23
wotc
Each creature with lifelink dealing combat damage causes a separate life-gaining event. For example, if two creatures you control with lifelink deal combat damage at the same time, Ajani's Pridemate's ability will trigger twice. However, if a single creature you control with lifelink deals combat damage to multiple creatures, players, planeswalkers, and/or battles at the same time (perhaps because it has trample or was blocked by more than one creature), the ability will trigger only once.
Format Legality
Standard
Not Legal
Future
Not Legal
Historic
Legal
Timeless
Legal
Gladiator
Legal
Pioneer
Legal
Modern
Legal
Legacy
Legal
Pauper
Legal
Vintage
Legal
Penny
Not Legal
Commander
Legal
Oathbreaker
Legal
Standardbrawl
Not Legal
Brawl
Legal
Alchemy
Not Legal
Paupercommander
Legal
Duel
Legal
Oldschool
Not Legal
Premodern
Not Legal
Predh
Not Legal
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