Napalmagranite

napalmagranites create a 3x3 area of lava tiles(they go away after 30secs).

almanac
when napalmagranite tried to join torchwood and snapdragon they accepted him and proceeded to destroy everything in a 1 mile radius.

technique
use them mainly after and before your defense is set up, as lava tiles are unplantable.

plant food effect: sends a wave of lava down its lane