The best replacement for blades is cavity back.

The best alternatives to blades are rated as following:
★★★★★  cavity back
★★★★  cavity backs
★★★  roller skates
★★  skis
★★  cavity
★★  cavity back irons
★★  studs
★  skates
★  thalmor
★  rack servers
★  regular blades
★  greybeards
★  paarthurnax
★  racks
★  servers
★  cavity golf clubs
★  penitus oculatus
★  cavity irons
★  game improvement irons
★  cavity back clubs
  muscle back
  inline skates
  greybeards skyrim
  ibm blades
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  pattern 99
  mulching
  mamba blades
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  snow skis
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  irons
  quad skates
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  owls
  cavity back golf clubs

Your alternative for blades is not listed? Suggest!
Speaking about blades, one probably shouldn't forget about grinder.

Other search terms related to blades and their ratings are:
★★★★★ grinder
You have in mind a companion for blades and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of blades in all years. Click on graph for more.
blades
cavity back
cavity backs