Sigarda's Splendor
From Innistrad: Midnight Hunt set
Sigarda's Splendor
Enchantment
As this enchantment enters, note your life total.
At the beginning of your upkeep, draw a card if your life total is greater than or equal to the last noted life total for this enchantment. Then note your life total.
Whenever you cast a white spell, you gain 1 life.