Currently have a Cleric and Shaman in a box team (SK,Cleric,Ench,Shm,Mag,Wiz). I want to drop one of them for a Druid for the tracking. Problem is I cast Shinning Rampart and Listlessness before every pull. The spells keep the tank up very well and I would hate to be without them now. I use the Clerics delayed great heal as well before every pull. If I drop one for a druid is there a druid spell line that will replace them. Or is there something Druids have that will not make me miss these spells.
Druids get the promised line of heals so if have a use for those that wouldn't be an issue. As for defensive procs Druids get the Reptile line of spells which is similar to what you are using currently. From memory it's an AC/attack debuff on the mob(s) plus an instant heal then heal over time on the tank.
Don't neglect druids' fire and cold debuff lines. They often debuff AC and ATK as well as resistance, and one line even increases incoming fire damage (skin to plants).