Symnovar Allegiants

Defender
Whenever this creature blocks, you may pay {u}{u}, if you do, this creature gets +1/+1 until
end of turn and you gain 3 life.
"We do not fight when water is scarce, but if we meet
a lonely traveler, we will return the boon life gave us to
those in need. Nevertheless, when bandits attack and
water is in surplus, we will fight to the death to keep it.
Good is key in these badlands."