So doing the Cracking Xarth Skull Event, i seen 3 rare minion card dropped.
Living Vine Wall (rare) - Earth/Life
Mudthumper the Mulcher (rare) - Water/Life
Hexathel (rare) - Life/Dimension/Assination
...Havnt got any though =(, bad times
I just recived the Hexathel minion card yesterday. Its actually not a rare(blue). It name is in Light blue color and has same info box border as the Eternal Weapons on pts. New rarity. So hexathel is actually "eternal" rarity. Actually, i was wrong, i just seen a rare (dark blue) minion card hexathel drop from siege boss also today, it had 4 stats on it tho, the ones listed but also diplomacy. the eternal (light blue) only has the 3 stats on it.
I've seen someone link the eternal minion in chat a week or two ago, I think it was Hexathel but cant be sure. I also saw an epic (purple) version of Hexathel (life dim ***) on the Deepwood AH today so it seems something funny is going on with that minion.
I so far I saw 7 new minions - not counting the different rarities of Hexathel. The 5 listed already and:
Razorleaf Matriarch Life Hunting Bloodroot the Feaster Life Hunting
I am assuming these 2 also come from the event, I found them listed on AHs.