Staff of the X Magus vs multicolored lands
I thought I'd find an answer on this easily, but somehow it's more troublesome than I'd imagined. That, or it's a dumber question than I think it is, haha.
My question is, do the Staff of the X Magus (like my Staff of the Sun Magus or Staff of the Flame Magus) abilities work on multicolored lands, or is literally just cards named Plains or mountains in addition to white/red spells?
It doesn't trigger for cards like Temple of Malice because those lands don't have the BLT Mountain.