- It's best to use Fiendish Sword Eradicator, Cho-Ou's skill to target units that have served their purpose, mostly unit with on call skill's like Ceremonial Bonfire Eradicator, Castor or unit that only works in (VC), such as Eradicator, Spark Horn Dragon.
- This unit can be used to activate Eradicator, Sweep Command Dragon's Limit Break and help fill the soul for its Soulblast cost while also saving Counterblast for said skill.
- It can also be used to get rid of intercepts that could potentially block units like Eradicator, Gauntlet Buster Dragon or Eradicator, Vowing Saber Dragon "Яeverse" when the opponent chooses to retire a back row Rearguard(s) for their abilities or Eradicator, Dragonic Descendant which has no retire abilities at all.
- In a deck focused on Eradicator, Vowing Saber Dragon "Яeverse", this unit's skill can be used to move Eradicator, Vowing Sword Dragon into your soul to make sure Eradicator, Vowing Saber Dragon "Яeverse" is at 13k power, even if you missrode.
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