Copper-9

Copper-9 enters the battlefield tapped. When Copper-9 enters the battlefield, create a 1/1 construct token for every creature in play, then give all artifact creatures you control a +1/+1 counter for every artifact creature you control.
{t}: add {2} mana of any type
{t},{5}: Create 2 2/2 construct tokens. Give a target artifact creature {x} +1/+1 counters
{t},{7},Sacrifice Copper-9: Search through your deck for a card named Core Collapse. reveal it, then add it to your hand.