Goofy, Knight's Captain

At the start of your pre-combat main phase, put
a +1/+1 counter on target creature you control.
{g}, Remove a +1/+1 from a creature you control: Negate all damage that creature has taken this
turn. Only activate this ability if you control
another blue and another white creature.
Trinity (This creature can be run as a commander
with two other trinity creatures who do not share
a color)