Tezzerets Lightning Charger

Whenever an artifact enters the battlefield under your control, if Tezzeret's Lightning Charger has 2 or less +1/+1 counters on it, put a +1/+1 counter on Tezzeret's Lightning Charger.
{t}remove 3 +1/+1 counters from Tezzerets Lighning Charger: Search your library for up to 3 artifacts , put them into your hand, then shuffle your library.