Vetiti Unum, Beyond Power

Indestructible, Triple Strike & Prime(At the beginning of your upkeep, add one mana of this
creatures color identity to your pool. This mana is not
lost as steps and phases end.)
Protection from Multicolor.
At the beginning of your upkeep all creatures
with prime add an additional one mana of any
color. This mana is not lost as steps and phases
end.