Unlike many effects that grant additional combat phases, you don't get an additional main phase with Godo, Bandit Warlord's ability
Also, for an additional cost of one of each mana type, you may untap all attacking creatures, giving them trample, lifelink, and haste until the end of the turn, and trigger another combat phase
Beyond just encouraging opponents to be nice to you, Zagorka actively stops attacking if the land is taken
I sincerely think the only thing this deck struggles with is slow mana management
Every time you play a threat, chances are good that there are two more threats and and answer being played across the table