Magmar has too much in the way of assets for both. They have the second highest amount of removal (behind only Vanar) and can also generate an insane amount of damage early on because they have very solid 2 drops.
Vetruvian can OTK or Swarm. So, why does Vet have the 2 least consistent strategies? Swarm can and will always lose to AoE that every faction but Vet now has. OTK is incredibly reliant on draws and loses very quickly to one unanswered minion.
Anyway, let's end it here, we're getting off topic.