Faker, Incarnated Legend

Whenever a legendary creature enter the
battlefield, you may pay X, where X is the
number of legendary creatures on the battlefield.
If you do, Faker turns into a copy of it.
Faker always has this ability and ignores the
legendary rule.
{t}:Target a legendary creature on the
battlefield, then reselect the target at random.
If the random target is the intial target, untap
Faker and it turns into a copy of it.