Defense Node, also known as Defender or DefenseSys, is an enemy from Final Fantasy IV that appears alongside CPU and Attack Node in the Tower of Babil. It will often heal the CPU for 2,000 damage, severely hampering the party's efforts to defeat it.
The CPU uses Globe199 twice when both the Defense and Attack Nodes are taken out, killing two party members. The Defense Node heals the CPU, so take it out first.
AI script Edit
Turn 1 - Restore - Target recovers approximately 3000 Hp - always targets CPU whenever possible.