Professor Fenris continued his explanation,
"Now let's talk about the power levels of supernatural tools."
There are 4 levels of power among the tools,
[1] Archon Grade
[2] Highlord Grade
[3] Overlord Grade
[4] Nexus Grade
Archon tools have four tiers, from tier 1 to tier 4.
Highlord tools have three tiers, from tier 1 to tier 3.
Overlord tools have two tiers, from tier 1 to tier 2.
Nexus tools do not have any tiers.
He also explained further that not only tools, relics, or artifacts are ranked in this manner, but all sorts of martial or magical techniques or arts are also ranked in this system, and the power of the tools at each level is equivalent to the level of the Seeker is -
Archon Tier 1 = 1st-Phase Seeker
Archon Tier 2 = 2nd-Phase Seeker
Archon Tier 3 = 3rd-Phase Seeker
Archon Tier 4 = 4th-Phase Seeker
Highlord Tier 1 = 5th-Phase Seeker
Highlord Tier 2 = 6th-Phase Seeker
Highlord Tier 3 = 7th-Phase Seeker
Overlord Tier 1 = 8th-Phase Seeker