By the way, here's how steam machine works with adrenaline. If it starts with four attack power (AP), it does it's first first attack as though it was the first attack on a normal 4 AP adrenalinized creature. If you play adrenaline on a cockatrice, it's first attack is for four damage. For it's second attack, it attacks as though it were the second attack on a three AP creature. If you play adrenaline on a frog, it's second attack will be for three damage. For it's third attack, steam machine has 2 AP, and it acts as though it were the third attack of a 2 AP creature. 2 damage. For it's fourth, it's the fourth attack of a 1 AP creature. 1 damage. Then it stops, because 0 AP creatures don't have a 5th attack.
Now let's pretend steam machine was blessed, and then got three additional AP from steam. It's first attack is the first attack of a 6 AP creature, so it does 6 damage. Next it does the second attack of a 5 AP creature, or four damage. Then it does the third attack of a 4 AP creature, so it does 2 damage. Lastly, it does the fourth attack of a three AP creature, or three damage. 6 + 4 + 2 + 3 = 15 damage.
The only problem I'm having is calculating the hits per turn it gets. It can't be based upon initial AP, 4 attack creatures don't get a fourth attack, but if it's based upon current AP, 6 attack creatures should get a fourth attack...
Time to do some testing!