Gravitex

Gravitex is an instant-use plant(how I think of it at least, this title was listed in the "pick one of the titles below and start writing" section so i don't rightfully own this plant). when planted, both of gravitex's discs will fly into random lanes, and then activate. the blue disc will temporarily weaken gravity in it's lane, and imps, normal zombies, and other small or flying zombies will be lifted up off the screen. the red disc will temporarily strengthen gravity in it's lane,so any vehicle zombies in the lane will be crushed and any flying zombies in the lane will lose their flight ability and just become normal zombies. after unleashing their abilities, both parts of the gravitex will disappear.