{3}, {T}: Exile target instant or sorcery spell that targets you. {3}, {T}, Sacrifice Shell of the Last Kappa: You may cast a spell from among cards exiled with Shell of the Last Kappa without paying its mana cost.
2004-12-01
Exiling a spell prevents that spell from resolving, but it doesn't technically "counter" anything. This means that Shell of the Last Kappa can exile spells which "can't be countered."
2004-12-01
Shell of the Last Kappa's first ability can only target a spell that targets you.