yugioh card the winged dragon of ra Yu-Gi-Oh! Yu-Gi-Oh! MR-008 – and a new double Yu-Gi-Oh! OCG/[LPST] LIMITED PACK -STAMP

Being able to cast one spell and get another for free helps counteract a few of the problems with this deck, notably its somewhat lacking land base for such big spells, and the deal is made even sweeter with some of the enters-the-battlefield effects you could be unexpectedly triggering

And that's not including its power in legendary things like Five Color Sisay, Weatherlight Captain or in planeswalker brews

Casting Cost: Card Type: Creature - Eldrazi Power / Toughness: 2 / 1 Card Text: Whenever another colorless creature enters the battlefield under your control, you may change Eldrazi Mimic's base power and toughness to that creature's power and toughness until end of turn

Well, it's possible to create a model that generalizes this concept