It is not recommended to start with this card in your hand as it's very expensive to play, and spending too many turns trying to keep a cheap Aladdin alive for this to Shift onto could put you too far behind

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More importantly, you can also pay one generic to copy one of the creature's activated abilities
Woodland Bellower now pays for your Zopandrel, Hunger Dominus and Protean Hulk gives you enough mana to cast Craterhoof Behemoth
It gets significantly stronger in decks that like to take extra combats, like Karlach and Moraug, or even Aurelia
All of the rares are insane and a few other cards are playable, but the rest is junk