Monsters are divided into two parts, monster who Support you , and monster deal damage to target (DPS).
*Support*
Runes:
-The support must not die x4 Vampire.
You find it in Patch of Growth/Patch of Adventure/Laboratory of Madness.
-The support must benefit you x2 shield.
You find it in Patch of Growth/Patch of Adventure/Temple of darkness.
Artifact:
If you support is Support give him Salvation.
If your support is Knight give him Revitalization.
*DPS*
the dps monster most deal more damage.
Runes
your monster need more than +100% crit rate and crit damage.
-x2 Blade.
-x4 Rage.
You find it in Patch of Growth/Patch of Adventure/Tear Glands Cave.
Artifact
If your DPS is Mage give him Linkage.
If your DPS is Archer give him Subjugation.
All blue Artifact you can get him in Summon Altr/Artifact/Galaxy Summon.