Emily, Joybringer

Flying, lifelink
Other creatures enter the battlefield with an additional lifelink counter on them.
At the beginning of each player's upkeep, they gain life
equal to the number of counters among creatures they control. Then if each player has 80 or more life, you win
the game.
"Hi! I'm Emily, the other Seraphim. Though you can
call me Em. Emmy. E. Whatever you want! I go by
whatever. Welcome to heaven!"