Using "Ultra Polymerization" will cause you to permanetly lose your Fusion Material.
"Predaplant Chlamydosundew" can be used to allow this card to be Fusion Summoned by using an opponent's monster with a Predator Counter.
Appropriately, this card is particularly useful against "Odd-Eyes Pendulum Dragon", as it can copy that monster's effect and possibly cause an OTK, which can be backed up if "Starving Venom" was Fusion Summoned on this turn, allowing it to gain a opponent monster's ATK.
You can use "Shien's Spy" to give "Odd-Eyes" to your opponent, and beat 5600 damage into your opponent.
You can use the effect of "Darklon" to make all your monsters become eligible Fusion Materials for this card.
You can use "Witch of the Black Forest" and "Sangan" to Fusion Summon this card instead of "Sanwitch". Not only will you have gained a powerful DARK Monster, but you will have added two new monsters from your Deck to your hand.
Possibly the best time to Fusion Summon this card is during your opponent's turn, via "Flash Fusion". You'll be able to search two Effect Monsters with stats of 1500 or lower, which you can use during your turn. Also, if your opponent does not destroy it, "Flash Fusion" will during their End Phase, destroying their Special Summoned Monsters as well.
Alternatively, you can Fusion Summon them on your turn with another card, adding two "Forbidden One" cards to your hand.
If this Fusion Summoned card is destroyed by the Flip effect of "Cyber Jar", then the Monsters your opponent Special Summoned with its effect will be destroyed.
In a Dragon Deck, select this card when you activate "Last Turn". If it is destroyed, your opponent's Special Summoned Monsters will be destroyed along with it. "Keeper of the Shrine's" effect can be chained to this card's, leaving you as the sole player controlling Monsters.