MP: BSoD (Newbie, LA, CBM 1.92) [Started!]

[Shardphoenix]

or are you saying, i put it up, then our nap is null and void?

This. Forge, if used correctly, can promote a nation from "strong" to "unbeatable" in like 2-3 turns (and if one casts it - he, most likely, has enough gems and forging plan), so giving a 3-turn notice is a luxury that generally cannot be afforded. Same with Arcane Nexus - it can generate over 100 pearls/turn (assuming there is active endgame going), so it becomes nasty really fast.
Of course, it depends - sometimes those enchantments are more of a way to level playing field somewhat.

[revenant2]

This turn was crazy!