Aeloria, The Forest Guardian

Flying, lifelink

Whenever you gain life, you may create a 1/1 white
Spirit creature token with flying.

At the beginning of your main phase, you can add X {g/w} mana, where X is the number of Spirits you control.

{1}{g/w} Sacrifice a Spirit: Put a +1/+1 counter on Aeloria.
It gains hexproof until end of turn.

"As it soars above, the world below flourishes, nourished by the hope and protection it brings."