Leader Enel , Yamato , and Portgas.D.Ace giving you a Life card creates more resource value and forces more attacks from the opponent to win the game
Just be conscious of her very high mana cost, as you won't be able to get her onto the battlefield as quickly as many other commanders.
Youll want to pack plenty of lifegain with cards such as Serras Ascendant, Authority of the Consuls, and Ajanis Pridemate to keep Heliods ability going
So translated, what's the name of the card
However, like Modern, Legacy heavily curates itself with a larger banlist
It changes the math of each turn enough that it requires some double-checking and re-evaluation, which can be a little frustrating for a new player who is still trying to figure out what their cards do