New Trap : Carnivorous plant

Anyone played Plants Vs. Zombies ? In that there is a plant that eats the invader. My idea is also the same :
Carnivorous plant :
A plant vicious Venus Fly Trap that eats any ground troop. After eating it takes about 10 seconds to digest the troop. While digesting , it is vulnerable to attack. After digestion , it is ready to eat again. It needs to be rearmed using elixir. On leveling up , its health increases and time to digestion decreases slightly. You get a plant at TH 5 , TH 8 , TH 10 and looks like the yellow flower before being triggered , so confusion.