The best replacement for skill drain is jinzo.

The best alternatives to skill drain are rated as following:
★★★★★  jinzo
★★★  battle fader
★★★  flip effects
★★★  stardust
★★  cardcar d
★★  black rose
★★  malefic
★★  rescue rabbit
★★  forbidden lance
★★  cyber valley
★  fiendish chain
★  ladd
★  evilswarm castor
★  effect veiler
★  ryko
★  gladiator beasts
★  crystal beast
★  monarchs
★  caius
★  dd survivor
★  marshmallon
★  gorz
★  hieratic
★  dragon rulers
  lonefire
  wind up rabbit
  flip effect
  garunix
  continuous effects
  spirit reaper
  honest
  black rose dragon
  inzektors
  trap monsters

Your alternative for skill drain is not listed? Suggest!
Speaking about skill drain, one probably shouldn't forget about malefics.

Other search terms related to skill drain and their ratings are:
★★★★★ malefics
★★★ beast king barbaros
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skill drain
jinzo
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