Then I think for a long time about what to do: go at the opponent with magic level 5 or go for the Wings and Armor. I decide to go to the opponent. On day 2 week 3 month 1, the opponent writes in PM (private message), "now I'll find out how you're doing =)". I cast Vision (air magic) and see two of the opponent's heroes nearby, I jump in on a luck roll. And then I got really lucky - with Piram's army (non-main hero) and Kirelle on a speed roll with 1 angel. I have the Shackles. With the loss of 6 Wyverns and meat (troops) with eyes (Evil Eyes), I kill both heroes on day 3 week 3 month 1. And I run further towards the opponent's castle. At the same time, the opponent digs up the Grail on day 3 week 3 month 1 and places it in a Tower.
On day 5 week 3 month 1, I reach the castle but don't dare to attack; I have almost no mana, and the opponent has a hero with Dendroid Guards, Dwarves, spell power 9, and expert Earth Magic. I decide to go capture the nearby castle (a Tower) to replenish mana. On day 6 week 3 month 1, I capture the Tower, and the Grail is there. The opponent surrenders afterwards.
Thanks for the game!