Special Summon "Alien Warrior" or "Alien Overlord" with this effect to replace your A-Counters used for this card's effect.
Use this card's effect, and then bounce it back with "Cosmic Fortress Gol'gar". There will most likely be enough A-Counters from the effect of "Gol'gar" alone to use this card again, allowing yourself to swarm the field with "Alien" monsters.
A fun combo for this card is "Cosmic Fortress Gol'gar" and "Call of the Haunted". Bouncing the Trap will destroy the "Alien" monster and give yourself another A-Counter. "Call of the Haunted" can then be re-used.