I propose the following additions, castable upon an object or an area as appropriate. (Also, you mention
greater alarm in your spoiler as one of the spells used, but it isn't on any of the tables.)
| Spell | Sourcebook | Minimum Caster Level | XP Cost |
|---|
| Attentive Alarm | Complete Mage | 10th | 1,000 XP |
| Caustic Mire | Complete Mage | 12th | 2,000 XP |
| Caustic Smoke | Complete Mage | 11th | 1,500 XP |
| Choking Cobwebs | Complete Mage | 15th | 3,500 XP |
| Climbing Tree | Complete Mage | 9th | 500 XP |
| Ghost Lantern | Complete Mage | 12th | 2,000 XP |
| Haboob | Sandstorm | 11th | 1,500 XP |
| Nightmare Terrain | Complete Mage | 12th | 2,000 XP |
| Resinous Tar | Complete Mage | 9th | 500 XP |
| Wall of Ice | Player's Handbook | 12th | 2,000 XP |
| Wall of Magma | Sandstorm | 13th | 2,500 XP |
| Wall of Water | Sandstorm | 12th | 2,000 XP |