Lorshawn, the Resourceful

Whenever an artificer enters the battlefield under
your control, if it was cast, distribute X +1/+1 counters among any number of artifact creatures,
where X is the number of artificers you control.
Whenever an artifact creature you control dies,
you may move any counters it had onto another artifact creature you control.
{t}, Sacrifice an artifact: Draw two cards, then
discard two cards.