Metalworker Metalworker turns your hand full of artifacts into a tidal wave of mana
Green Majestic Myriarch Jank Rating: 3.5 of 5 Majestic Myriarch would rank even higher if it weren't actually a good cardall you need to do to have a 10/10 on Turn 5 is curve out, and this isn't even including the upside of picking up random keywords
Take a couple of things you know work Mono-White Aggro creatures and the Jeskai Cycling lightly tri-color mana and splice in the new mechanic
Note that while it is the source of damage for its activated ability, it won't be on the battlefield as that ability resolves and its first ability won't increase the damage it deals
These effects are commonly tied to enters abilities (see: Fleshbag Marauder) but the edict effect can be tied to upkeep triggers, attack triggers, even activated abilities
Faces of the Past, Moraug, Fury of Akoum, Jeskai Ascendancy and Intruder Alarm are prime candidates