Of course, in the anime, we saw the effects of this card in play when Dartz used it against Yugi in their duel
They attack, and one of them throws a weapon which lands near her, kicking up rocks, one of which hits her in the face
Let us also not forget the obvious AngerAnger, which just needs to be sacrificed to ensure we have haste all the time
In Magic, there are Waterbreathing creatures (that use mana to gain +x/+0), and White has the odd one kicking around (I think every colour does ultimately), you could throw something like that on
(If this matters, you must have a very good reason for wanting to pay life.) If the target Equipment can't legally be attached to the target attacking creature when Raubahn's last ability resolves, the Equipment won't move
Without a deck size increase, the addition of tools means players will have to strategize over whether to prioritize Tool cards or other types theres likely to be more variety seen across decks as players decide what better suits their particular playstyle over purely whats in the meta