After you summon this card, use "DNA Transplant" to change all monster attributes to that of the selected type, thus locking down your opponent. You just need to destroy the existing monster(s) he has.
To speed up the process using the tip above, you can attack your opponent's monster with "Giant Germ" or "Nimble Momonga" on your turn to Special Summon two more copies and on your opponent's turn wait for them to destroy the new monsters in battle.
This monster is an excellent side-deck choice against Blackwing Decks. They would attempt to swarm the field, thus triggering this monster's effect and decimating those monsters.
It is a good idea to use this card in a "Gladiator Beast" Deck. You can use it to protect your "Gladiator Beasts", and if that fails, you can still strike back. There is no harm in using this card's effect with the deck, as all of the "Gladiator Beasts" have a different attributes.
This card is also ideal in Frognarchs since every turn you have one "Treeborn Frog" on the field. You can set one weak monster, so as to have 2 monster on the field. (one "Treeborn Frog" and one weak monster). So, when your opponent attacks your frog and the other monster you can summon this card for a strong comeback.