Here is the full list of all 34 Chaos Reborn achievements.
200 mana sprites collected in multiplayer or realm battles
Win 15 battles as an invader in realms
Win 50 two player classic ranked multiplayer battles
Win 50 two player equipped ranked multiplayer battles
Win 10 2vs2 multiplayer battles
Win 25 three player classic ranked multiplayer battles
Win 25 three player equipped ranked multiplayer battles
Win 15 four player classic ranked multiplayer battles
Win 15 four player equipped ranked multiplayer battles
Trap 50 enemy creatures with a gooey blob in multiplayer or realm battles
50 Successful disbelieves in multiplayer or realm battles
Survive 10 hits on your wizard in a single multiplayer or realm battle
Resurrect 50creaures with a Fountain of Life in multiplayer or realm battles
Kill 50 undead creatures in multiplayer or realm battles
50 Magic Attack kills in multiplayer or realm battles
Activate 50 Mega-spells in multiplayer or realm battles
Paralyze 50 enemy creatures in multiplayer or realm battles
Raise 50 creatures from the dead in multiplayer or realm battles
Successfully complete 5 realms
Successfully complete 10 realms
Successfully complete 25 realms
Subvert sucessfully 50 enemy creatures in multiplayer or realm battles
7 Succesive multiplayer wins in multiplayer or realm battles
Cast 50 surviving illusions in multiplayer or realm battles
50 Talismans activated in multiplayer or realm battles
Win 15 battles as an ally in realms
Kill 2 wizards in the same turn in a multiplayer or realm battle
Kill an enemy wizard with magic sword 25 times in multiplayer or realm battles
Reach archwizard rank in classic mode
Reach archwizard rank in equipped mode
Complete all wizard training and challenges
Successfully cast a Turmoil spell in a multiplayer or realm battle
Kill a giant with a dwarf in a multiplayer or realm battle
Kill a dragon with a rat in a multiplayer or realm battle