One of the players in my group wants a helpful high level (≥11) wizard to build something for him that can create an antimagic field. The player is a rogue, so has "use magic device" as a skill.
I was thinking about creating some kind of oil that could be smeared on an arrow, and then shoot the arrow to some location where the antimagic field centers, but by RAW, oils are limited to 3rd level spells. Similarly, a Wand (that could be used with UMD) is limited to 4th level spells.
Would this be possible at all? What would be the cost of such an item? Are there other options, and what would be some difficulties for the player in this case?
I guess only a Scroll would make sense. Any other ideas how to give this player a way to create an antimagic field?