The best replacement for undying is infect.

The best alternatives to undying are rated as following:
★★★★★  infect
★★★★  exile
★★★★  pillar of flame
★★★  unhallowed pact
★★★  undying
★★★  surgical extraction
★★  indomitable pride
★★  rest in peace
★★  grafdigger's cage
★★  fire of the deep
★  veil of lies
★  grave betrayal
★  soulshifter vortex

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

Other search terms related to undying and their ratings are:
★★★★★ tokens
★★★★ persist
★★★ sacrifice
★ mimic vat
You have in mind a companion for undying and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of undying in all years. Click on graph for more.
undying
infect
exile