Evelyn, Mechanica

Whenever Evelyn, Mechanica attacks, you may
pay {5}, if you do, destroy all nonartifact creatures, put +1/+1 counters on Evelyn equal to the amount of creatures destroyed this way and remove Evelyn from combat, Evelyn has hexproof as long as you have not activated this ability.
{2}, {t}: Put a +1/+1 counter on target nonartifact creature, that creature is an artifact in addition to it's other types.