That means tribal zombies or goblins
In Final Fantasy games, characters change and grow over time, so we are able to show a character anywhere in that timeline based on our need
But I do like the flavour text here, telling us implicitly that the Zombie Master used to be a necromancer who controlled zombies and was betrayed and probably consumed by his zombie minions
Sacrifice after III.) I Until your next turn, whenever a creature attacks you or a planeswalker you control, it gets -2/-0 until end of turn
The next set of new cards has four pretty good cards, with another cheap demon for tribal decks, some card draw, great removal, and a token generator
For EDH, you want to play edicts templated so each player or each opponent sacrifices a creature, like Plaguecrafter or Tithing Blade