Neptune, CPU of Planeptune

Trample, Partner with Neppgear, Candidate of Planeptune
When this card enters the battlefield and during your Upkeep; place Share Counters on this card equal to the number of Planeptune cards you control. Neptune gets +1/+1 for each Share Counter on it.
{5}{u}{r}-Transform Neptune, CPU of Planeptune. You
can remove all Share Counters from this card (Min. 5) instead of paying this ability's Mana Cost. This ability cannot be activated the same turn Neptune is placed on the battlefield.