strong shale
There was a standard deck back in the day revolving around [[cogwork assembler]] and [[powerstone shard]] where you'd generate infinite mana by copying the shard, then make infinite hasty copies of the assembler and swing for lethal. I revisited the idea in pioneer with the additions of training grounds, Reckless Handling, and hulking Metamorph to discount the cost of the combo, and to have some redundancy. I'd love some feedback on if there are any cards I missed, things that shouldn't be in there, or any sideboard recommendations.
https://www.moxfield.com/decks/eBEfY15zw0-354cNoV1XTA
molten plover
: Create a token that's a copy of target artifact. That token gains haste. Exile it at the beginning of the next end step.