One for all and all for one - 3

It played out just great, except for the starting army, only 40 skeletons, and a 4-hero split. But I burned through 4 Griffin Conservatories on day 1 and got a +5% Necromancy artifact. I started snowballing, barely scraped together a hundred skeletons, and killed the enemy on day 121. I found 2 more Griffin Conservatories, collected some Angels in total, and went into the Dragon Utopia on day 126. After that, I dropped the Angels into the Castle (enemy's Castle) on day 131 and 132, took 3 more Dragon Utopias, upgraded the Archangels, and sat down to replenish mana. At that point, my opponent decided not to continue.

Thanks for the game.