The most useful monster.

The voting continues! Since you haven't voted yet, you can restore justice and push the two dragons in second place aside by putting a praying mantis there. Just list three monsters in descending order of usefulness. And as the once-respected Pandora said, it is desirable to hear a comment on the chosen units.

I will list useful monsters for an offline tournament:
1. Fairy (Retaliation - can defeat many detachments single-handedly)
2. Minotaur (Blocks attack - even one can wipe out a hundred CDs ;)
3. Diablo (+Ice Demon) (the most mobile warrior in battle, summons Ice Demons who can freeze the enemy detachment a bit :)
In combination with a hero who has certain types of magic it's totally awesome (for example, casting Retaliation on an Ice Demon)