When the Overlord plays either the Draw 3 Monster tokens, Draw 4 Monster tokens, or Goblin King token, they draw the indicated number of tokens and add them to their hand. The Overlord can then play that same number of tokens, but they do NOT need to be the same tokens that were just drawn.
This is the only way the Overlord can play more than the usual 2 tokens on their turn. Any Monsters that are placed at this time MUST be placed randomly by rolling the die. The Overlord cannot choose their starting place