The Vaccinator

At the beining of your upkeep, choose a colour. equiped creature and another target creaure you control gain protection from the chosen colour
until end of turn
Tap equiped creatre: Regenerate target creature
and put a charge counter on The Vaccinator.
Tap equiped creature, remove a charge counter: equiped creature and another target creaure you control gain protection from the chosen colour
until end of turn
Equip {0}