Wow, another three attacker.
HP: 120, it's staying around for a while.
Mend: Energy retrieval AND healing? It's nice as Golem is notorious for high energy attacks.
Enraged Linear Attack: Hit anyone and with high HP, that can be nasty. Particularly as it's only two energy.
Rock Tumble: High damage, no resistance, from the days of Expedition Golem.
Energy cost: Has to be in a fighting deck to appreciate it.
Retreat cost: Three but no real loss.
10/10. Doesn't get any better than this.