chronomaly yugioh deck Yu-Gi-Oh! - Technology (REDU-EN054) - Return of The Duelist - 1st Edition Number C6: Chronomaly Chaos Atlandis

While it isnt powerful or acts as an extender, Elemental Hero Air Neos has an interesting history

When timed right, and with luck, this could turn the tide of a match

They also have offensive effects that either boosts their ATK or grants additional attacks (e.g., "Frightfur Bear", "Frightfur Sabre-Tooth", "Frightfur Wolf", and "Frightfur Tiger"), destroys cards on the opponent's field ("Frightfur Tiger" and "Frightfur Leo"), prevents the opponent from activating cards or effects when they attack ("Frightfur Chimera" and "Frightfur Sheep"), or steals an opponent's monster by equipping them to themselves or Special Summons them to their controller's field ("Frightfur Bear" and "Frightfur Chimera")

-3 or more: Any further Battle Damage your opponent takes from battles involving this card is halved