cards like doubling season mtg Primal Vigor vs. Season: Pros and Cons — Which Should You Play? If an effect would place one or more counters on a permanent you control Doubling Season - MTG Proxy

Wrenn's Resolve is an awesome new draw card from MTG March of the Machine

Sylvan Library Better than a normal draw step Sylvan Library is a two-mana enchantment that reads: At the beginning of your draw step, you may draw two additional cards

1 generic, 2 Phyrexian white, Sacrifice two other artifacts and/or creatures: Put an indestructible counter on Mondrak, Glory Dominus

This can be incredible in multiplayer commander as you can be drawing a ton of cards

Rummaging : This effect, named after Rummaging Goblin, lets you discard a card to draw that many cards

That being said, I am of the opinion that Ragavan, Nimble Pilferer is currently not too good for Modern