I think it would be very very interesting to have a version of "shard golem" for weapons, as they to are rare and come in every element. The card itself would be rare, and would build a combined weapon depending on the weapons in your hand. Unlike shard golem I would suggest the weapon to just be in the other section. I'm totally fine with any adjustments. I tried to make the effects about the same as shards even knowing that it will be much harder to play a lot of weapons then it will be to play a bunch of shards.
2+ Super nova on play, 4+ Generate 3 random quantum/turn, 6+ Generate 6 random quantum/turn, 8+ Summon random nymphs on play
2+ Discord, 4+ Antimater
2+ Boneyard, 4+ Aflatoxin
2+ Salvaging, 4+ Black Hole
2+ Stone skin on play, 4+ Combine all shards on play
2+ Heal 5 hp/turn, 4+ Adrenaline
2+ Fahrenheit, 4+ Rage
2+ Flood, 4+ Nymph Tears
2+ Sanctuary, 4+ Endow
2+ flying weapon, 4+ Shock Wave
2+ Scarab, 4+ Readiness
2+ vampire, 4+ Steal
2+ immortal, 4+ Immortality