I've dared to fight Hobgoblins (big brutish cousins of goblins), but not alone. We won with tactical thinking, mobility, experience, superior weapons and luck. If their mages disabled us with their 'Stinking Cloud' spells, when their heavy infantry with scythes advanced, someone would see two corpses instead of us perhaps.
Nothing speeds up training so fast as going beyond pain limit. I strike more precisely and harder with Two Handed Sword now.
Now i fought kobolds in swamps near Peltarch. There's promise of income if i won't get poisoned by 'Stirges' (flying large insects). Recovery from poison such as this, is costly or takes lot of time.
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I went into swamps and fought... Got what i wanted until i was too wounded and without arcane power to fight two well trained 'Kobold Fanatics' at once. I had to retreat. Two stirges dead as well, i wasn't poisoned.
It was risky (coinwise), but succeeded this time.
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Later i've tried fighting Orcs, but i've got beaten bad. Managed to retreat so i live.