After you have played this with “fireworks tech” card which gives a friendly Mech +1/+1 & triggers deathrattle. You get extra 4-cost minion on the board. 5/5

With Robes of Protection “Can’t be targeted by spells or Hero Powers” & taunt minions this is pretty powerful.

Use this with the 0/8 chest summoned by Marin the fox or any high hp minion.

Probably the best rogue card for copying. I was able to copy Heistbaron Togwaggle 8x into my deck with a single card. The longer this card is in your hand the more you can copy. +1 copies for each turn this in your hand. 5/5

Summoning 20 minions can be achieved pretty easily with Shu’ma, unleash the hounds and a swarm of locusts. So this is actually a pretty powerful hero power if you have full board since it gives every turn +2 attack for seven minions. 5/5 for easy activation.