If you gain life during a turn before Vanguard Seraph is on the battlefield, its last ability won't trigger that turn even if you gain life again later in the turn.
08-11-2024
wotc
Vanguard Seraph's last ability triggers just once for your first life-gaining event on each turn, no matter how much life you gain.
Random a card of Magic: The Gathering (MTG), but you can also roll the D20 dice, random a Planeswalker, have fun with the random rules and more.