should I sell my excalibur for a warframe slot if I already have umbra?

hoki 899 slot — rbet303 login - 899 slot 4 is his normal subsume slot, it's a fairly useless ability outside uAquariusBlue899 avatar · AquariusBlue899 nuts and bolts slot Wallets - at 899 · Slings

3x3 27 ways slot 899 999 199 299 399 499 599 699 799 199 299 399 THE CALORIC CONTENT OF THE SLOT AND BEEHIVE OVENS , RESPECTIVELY