Franken-Knight

Whenever an equipment or aura spell enters the battlefield under your control, draw a card.

{t}{2}: You may search your library for an equipment or aura spell with mana value equal to, or less than, the amount of equipment or aura spells you control. Put that spell into your hand. (For example if you control 2 equipment and 1 aura, you may search for an equipment or aura spell worth 3 or less.)