Whenever you cast an instant or sorcery spell, create an X/X colorless Construct artifact creature token, where X is that spell's converted mana cost.
, Exile Metallurgic Summonings: Return all instant and sorcery cards from your graveyard to your hand. Activate this ability only if you control six or more artifacts.
The number of artifacts you control is checked only as you activate Metallurgic Summoningsâ€™s last ability. Itâ€™s not checked again as it resolves.
Metallurgic Summoningsâ€™s first ability resolves before the spell that caused it to trigger.
If Metallurgic Summoningsâ€™s first ability resolves and the spell that caused it to trigger has been countered, use that spellâ€™s converted mana cost as it last existed on the stack to determine the value of X.
For a spell with in its mana cost, use the value chosen for X to determine its converted mana cost. For example, Clash of Wills is an instant spell with mana cost . If you chose 2 as the value of X, then Clash of Wills has converted mana cost 3, and Metallurgic Summoningsâ€™s ability will create a 3/3 token.