Elephant swords

[Jens Nordlunde]

I think it must be relatively save to say, that the tusk swords and the trunk swords were not used at the same time, or the elephant may have cut the trunk while wildly fighting.
Trunk swords would have been effective against foot soldiers, just like when the elephants had a chain in the trunk, but would tusk swords not have been more effective against riders/horses?