All prior amass cards created Zombie Army tokens, but the text was changed to amass zombies to distinguish them from LTRs amass orcs
You can put both triggers on the stack, then resolve Displacer Kitten's first, have it blink The Fourth Doctor, then trigger The Fourth Doctor and generate a Food Token
It has a beginning of combat trigger, so drop it main phase and get it before things happen badly
You would take half with Gisela out, so just a single damage per nonbasic land you are running, while your foes double, so essentially four damage per nonbasic land they control
Want to really beef up your Ball Lightning
Serah Farron // Crystalized Serah This Selesnya transformer legendary lady with Grey Ogre size and cost is next