Assuming you have no dudes out before the win turn, you need 8 mana for 4 dudes and 3 for beardo which is 11. However, you also need two other spells to refresh power. Either two zero cost spells or a second coin plus 1 cost spell:
2/10: make a dude
5/10: beardo
5/11: coin
7/11: dude #2
You have 4 mana for two dudes but you need to cast two more spells here to refresh hero power twice more.
You need at least 2 coin from burgly to pull off otk correct
Assuming you have no dudes out before the win turn, you need 8 mana for 4 dudes and 3 for beardo which is 11. However, you also need two other spells to refresh power. Either two zero cost spells or a second coin plus 1 cost spell:
2/10: make a dude
5/10: beardo
5/11: coin
7/11: dude #2
You have 4 mana for two dudes but you need to cast two more spells here to refresh hero power twice more.
3 coins and beardo
2 coins and 1 cost spell and beardo
Otherwise you need to make horsemen stay on board which ain’t exactly easy