Okabe Rintaro, Lab Mem 001

When Okabe Rintaro enters the battlefield or attacks, mill three cards. You may put an artifact card with mana value 2 or 3
from among them into your hand.
The first nonartifact spell you cast each turn
has improvise. (Your artifacts can help cast that spell. Each artifact you tap after you're done activating mana abilities pays for {1}.)