rosie mtg card Magic The Gathering - The Lord of the Rings Tales of Middle Rosie Cotton, Barmaid (12R129) -

The blowout, of course, will be hitting the player who just cast Living Death

Thus, it can be countered

Circle of Despair Circle of Despair | Illustration by Scott M

The social part is still on you

Similarly, prepare your counterspells, killspells, and hand attacks

With other complementary artifact mana sources like Thran Dynamo and Grim Monolith, decks could count on being able to get the kind of mana you'd need to justify packing the cards that would let you use the mana from Metalworker to deliver the knockout blow, and their presence lets you turn that Metalworker mana into permanent giant amounts of mana rather than just a one shot deal