Sierra, Francisca's Advisor

Lifelink, worship {t} (Gain 1 life or another target creature you control gets +1/+1 until end of
turn.)
When creatures you control Worship you 5 or
more times this turn, prevent all damage dealt by creatures an opponent controls until end of turn. (Activating a worship ability without targeting a
creature is considered as it worshipping it's controller.)