In November 2005, Reso signed with Total Nonstop Action Wrestling (TNA) under his Christian Cage ring name, where he won the NWA World Heavyweight Championship in February 2006.
He recaptured the title in January 2007 and established Christian's Coalition, which disbanded a year later.
Once Copeland was promoted from his developmental status to touring with the WWF, he put in a good word for Reso and got him invited to the WWF-affiliated Dory Funk, Jr.'s Funking Conservatory training camp in 1998. Squad in a six-man tag team match, then they briefly feuded with The Undertaker's Ministry of Darkness, later joining the team.
At Rock Bottom: In Your House, The Brood defeated The J. Upon learning that Christian was beaten into telling Ken Shamrock the whereabouts of Stephanie Mc Mahon, The Undertaker punished Christian by flogging him.
They lost the tag titles to Too Cool soon after, but won them back in a four corners elimination match at King of the Ring.
Between WWE and TNA, Reso held 22 total championships (including six world titles) and headlined multiple pay-per-view events.They faced off in an untelevised tryout match, which Copeland was booked to win.After the tryout, Copeland signed a contract with the WWF.Legend, Zakk Wyld, Rhino Richards, and Sexton Hardcastle (Copeland).As a tag team on the Canadian independent circuit, Copeland and Reso were known as High Impact and later The Suicide Blondes.