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Since every Zoodiac XYZ Monster can be summoned once per turn using one Zoodiac monster you control (with a different name) as material as opposed to the listed requirements, XYZ Summon Zoodiac Chakanine from your Extra Deck

C Common Mathematician X EARTH Level 3 [ SpellcasterEffect ] ATK 1500 DEF 500 When this card is Normal Summoned: You can send 1 Level 4 or lower monster from your Deck to the GY

Furthermore, since Dragoon does not have a once-per-turn restriction on its name, it has good synergy as you can use its negation effect again by bringing it out via Four-Flower Scattering

Just victory

Both of these effects don't use up any counters, meaning it can easily spiral out of control and do devastating amounts of damage, with life point gain available as a back-up strategy if your life points get too low