Blessed by the Wilds

Whenever you tap a creature you control for
mana, put a ritual counter on Blessed by the
Wilds.
When you have 5 out more ritual counters on
Blessed by the Wilds you may sacrifice it. Create
a 1/1 green elf token with " Tap: add one G"
onto the battlefield for each ritual counter.
"The elves learned long ago, if you give to her.
She will give back"