Since Mictlan has gotten Arcane Nexus up, let us recapture the measures needed to counter a premature game end.
A) Minimize the gains through Arcane Nexus:
No usage of gems besides astrals (For rituals or forging; also for battles?).
No usage of astral gems either, since they are needed to get Arcane Nexus down.
B) Get it down as soon as possible:
Kill the caster: How many S8 candidates does Mictlan have? Where are they? Any infos anybody? I'm in the dark there.
Overpowering would probably be to hard. Is there any known Enchantment site? I don't know any.
Dispel it: Since my Gift of Nature's Bounty fired first, it got the open global slot. Arcane Nexus overpowered Atlantis' Maelstrom. Would be nice to know, how many extra gems were put into that Maelstrom, but only the disappeared Jim Morrison knows the answer.
Volunteers, please donate gems! Alone Jotunheim is not in the shape to win the gem income race against the Nexus.