Один за всех и все за одного 5

Had two Roc dwells, decided not to take any restarts. Both towns next to me were fortresses so I went double fort build + birds. Finally at 132 took naga bank losing 2 birds but got gold to buy everything and upgrade thunderbirds, opp went into my zone with scout, got into FB vs Nagash with low mana but ballista did the job.