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The beauty of these archetypes is in their customization

Your board is likely to have many creatures with these types, so it's likely to be a powerful attack trigger

Maybe a Rust Elemental

However, if you're trying to build a deck for the first season of ranked battles, and only need one more copy of a key card, you should grab the Starter Deck that contains the last card that you need

At the start, it hinders the power of opponents' creatures

While the effect of this card is decent (especially the fact that you can play it for free), its likely more the artwork/character popularity combo than playability driving this particular cards value