Wizards of the Coast has its own written stance on proxies, in which they state: Wizards of the Coast has no desire to police playtest cards made for personal, non-commercial use, even if that usage takes place in a store. What is the Point of a Proxy
Combine a Cloudstone Curio, Phyrexian Altar, Life Finds a Way, mana, and a nonartifact creature token, and you can make token copies of your creature through population, then the Altar uses a neverending resource to pay for the Dreadnought again
Graded Population Report: Noctis, Prince of Lucis #235 Visualize the distrbution of grades in the chart
That doesnt seem very funny at first, but imagine all of the whacky possibilities
Mana Ramp Delighted Halfling Cryptolith Rite Gyre Sage Selvala, Heart of the Wilds Growing Rites of Itlimoc Seedborn Muse Allie branches out of land ramp into a fair amount of creature-based ramp as well