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Triggered ability that creates an effect that sticks around? (Maybe you meant to have "until end of turn"?)

Something for Storm to beat Chalice with that fits the colour pie and wouldn't ruin Standard:

Slag Eruption :1::r:
Sorcery
Destroy target artifact. If you do, add :r::r::r::r: to your mana pool....

This is better than Tinker. Because it places a constraint on what you can find (different names) you can fail to find three of them and just put Blightsteel onto the battlefield every time.

Maybe...

Snow Leopard's Eye Diamond

Storm as a (partial) drawback is an interesting design. Good with Flusterstorm (and Angel's Grace).

A repeatable Sphere effect as an activated ability is pretty cool. Potentially a really strong...