What battle problem is 8-70 meant to solve?
8-70 uses 8 main contact points and a 70 height class. Lower setups generally expose less underside, while the complete Blade, Bit and launch determine the result.

Balance
Start with Knight Fortress 8-70 Under Needle; it is labelled as a official stock pairing with the note “Takara Tomy CX-14”. There is no second verified build yet, so do not invent one just to fill a deck.
8-70 uses 8 main contact points and a 70 height class. Lower setups generally expose less underside, while the complete Blade, Bit and launch determine the result.
8-70 appears 1 time in the 20 recent winning decks reviewed by BeyXBuild. This is a reported-deck count, not a win rate or a picture of every Malaysian event.
8-70 uses 8 main contact points and a 70 height class. Lower setups generally expose less underside, while the complete Blade, Bit and launch determine the result.
Compare 8-70 directly with the 8-80 Ratchet in the same complete build. Run at least five launches per side and record knockouts, bursts, self-knockouts, scraping and spin finishes; change only this one part.
Drop it if it does not beat a specialist in any matchup your other two Beys leave open. Flexibility only matters when it covers a real deck weakness.