Ectoplasmic Fortification (Collector's Rare) (MZMU-EN008) - (Collector's Rare) - Maze of Muertos 1st Edition

Activate 1 of these effects;
• If you control no monsters: Add 1 Level 6 Zombie monster or 1 "Call of the Forgotten" from your Deck to your hand.
• Zombie monsters you control gain 400 ATK, then you can draw cards equal to the number of "Call of the Haunted" you control.
You can only activate 1 "Ectoplasmic Fortification" per turn.