mtg commander masters cards Deck - Eldrazi Unbound Theme 1 Life Wheel Here Are Two New Cards

Additionally, if the permanent or token destroyed was controlled by its owner, this card can function as an effective source of card draw which is sorely needed for white decks

Here are some official rulings for this unusual mechanic: 107.6

Yes, the initial effect is decent while not mind-blowing

When this creature enters the battlefield, create that many tokens that are copies of it.) Menace (This creature can't be blocked except by two or more creatures.) Once you announce that you're casting Ruthless Radrat, no player may take actions until you're done casting it

That includes a collector booster, promo cart with exclusive art, play booster packs, foil lands, and a spindown die