Kabira Outrider uses it to calculate its bonus as its ability resolves
First, Throw lets you fling an attached Equipment off of Cap to deal damage equal to its mana value, divided however you like among up to three targets, while Catch automatically re-attaches an Equipment at the start of combat so the shield always comes home
30 Alibou, Ancient Witness Artifacts Wait For No One Alibou, Ancient Witness is a Boros (red/white) commander that allows artifacts to be used in an aggressive manner, dealing direct damage to opponents and permanents while allowing artifacts creatures to be used with additional immediacy
By going back to basics with those oh-so-iconic D&D initials themselves
Beyond that go for faster lands Sanctum of Ugin, Ancient Tomb, Eye of Ugin, better ramp Mana Crypt, The One Ring for draw, the Eldrazi Titans (all), Conduit of Ruin, Void Winnower, Portal to Phyrexia, okay I'll stop now