Worship Istus or Lyrus and gives you access to the luck domain and destiny domain. Luck gets your freedom of movement and miracle, destiny gets you choose destiny (rounds/level, roll 2d20s on all attack rolls, saves, ability checks, and skill checks), warp destiny (immediate action save reroll AFTER learning result, with a bonus equal to your CL, capped at 20), and omen of peril.
Player's Guide to Faerun: weirdstone. Shut down all teleportation, extradimensional travel, etherealness, scrying, and anything that mimics them in a 6 mile radius. Can be activated and deactivated as you wish.