Mogis, Thassa, and now this guy are the only gods that do anything in an empty board. I think it's a little odd that his ability is so similar to both Thassa and purphoros.
As far as cube goes I think anyone who ignores thassa can ignore this guy. He's slow and gives you increments of value- while bolts and cards are pretty good increments I don't think it's great to start on turn 6. Colored
staff of nin for one less mana with a random factor.
I like godsend but I don't think there's anything to mechanically compare it to, equipment are weird.
Scepter of dominance is probably the closest thing. Costs the same, is an artifact, deals with an attacker or blocker every turn. As far as cubing goes how often would a creature with a +3/+3 equipment get eaten instead of chump-blocked? And on the other side do you want to have an effectively first strike death touch exile blocker? Pretty obnoxious.
I'm fine with this as a "swords but worse" effect. It being colored certainly sucks because there's no way it's a cycle (that would be weird, 5 gods 5 mythic equipment as the set's mythics), and costing 3 to equip blows. Just from reading it I'm not really convinced it's more powerful than
vulshok battlegear enough to run.