Youre looking to combine goblin payoffs with cheap disposable artifacts here, so include all the usual goblin lords and cards like Skullclamp, Prized Statue, and Ichor Wellspring
Without further ado, here are the mechanics present in this set
While the "ease of flipping" category is, in large part, a product of the number of defense counters on the battle (battles range from three to seven defense counters, and a battle with three defense counters will be much easier to flip than one with seven), it also takes other factors into consideration, like whether the battle makes creatures (if so, we can use them to help defeat the battle, making it easier to flip) or whether the battle acts as removal (which can get a blocker out of the way, making it easier to attack and defeat the battle)
What this means, is that you can swing in with a couple of Merfolk and very easily refill your hand