The Wellspring

Vanishing 3
When The Wellspring enters the battlefield, put {x} Font counters on it.
If counters of any kind would be put on The Wellspring, and it didnt enter the battlefield this
turn, exile it instead.
{t}: Remove any number of Font counters from
The Wellspring, if you do, add twice that much
mana of any one color to your mana pool.