That is not a small effect, and just the tiniest bit mad, all things considered
If your goal is to play creatures and unload a lot of damage very quickly, you really want to come out of the gates starting on turn one or turn two
Artifact Color tag templates(None) Crystal Shard , or , : Return target creature to its owner's hand unless its controller pays
Doubling Season and its likenesses are incredibly well known cards that doubles all tokens (and counters in the case of Doubling Season) that would be created for its owner
With a Harmonic Prodigy on the battlefield, Burning-Tree Emissary makes four mana when it enters the battlefield while only costing two, turning it into a Dark Ritual that leaves behind a 2/2 body
Grams per Square Meter (GSM) is an international standard for measuring the weight of paper or fabric