Xol the Unscathed's hero power is Beam Me Up!, which generates one of these cards depending on her emote.
Fatality - Beam of Death
Fatigue - Beam of Decay
Fear - Beam of Fear
Flame - Beam of Fire
Flummox - Beam of Confusion
Frost - Beam of Frost
She starts her first turn at 3 mana like the other final bosses. Here is her deck.
1x Blood-Queen Lana'thel
1x Clutchmother Zavas
1x Deathwing
1x Lakkari Sacrifice
2x Cataclysm
2x Corrupting Mist
2x Dark Bargain
2x Darkshire Librarian
2x Despicable Dreadlord
2x Doomguard
2x Flame Imp
2x Lakkari Felhound
2x Malchezaar's Imp
2x Silverware Golem
2x Soulfire
4x Howlfiend
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Another 1st try-er here. Thanks.