A couple of more allies to consider pairing with this card:

 Colossus from Magik's kit: He can defend from hand with tough without exhausting

 Amadeus Cho from Herc's kit: 2 cost ally that can exhaust (no damage) to draw cards. Yes, you have to protect him from 
 minions, but if you get him early, that could be a TON of card draw

If you have 1 gift this is the best resource generator in the game when you factor in the cost.

If you have 2 gifts this is the best resource generator in the game.

If you have 3 gifts this is so ridiculously good.

Removing most villain attachments is trivial once you have this out and 2 or 3 gifts.

This card went from one I kinda slept on to one I am almost always excited to draw, even early on.

With no gifts it is easy to be underwhelmed at just getting the ready for 2 cost, especially when you probably have three copies of Limitless Stamina in your deck. Many other heroes would gladly take a ready for 2, and having one of these early has helped me clear out a labor several times.

With 1 gift you still may feel like you would rather have Limitless Stamina. If you don't have Golden Mace or Prince of Power out yet readying an upgrade is basically useless. If you aren't going to do excess damage or you are at full health, Prince of Power is useless. If you only have 1 gift readying the mace is probably pretty lackluster as well. Still, this is a ready and helps you clear a labor, or clear whatever has distracted you from your labor, and is playable.

With 2 gifts you get a tough card to go with your ready. Now this feels like a good card. You also likely have one of your upgrades down by now. The mace hits for 2 extra now so it's more exciting to ready. Those mace hits are also now more likely to be excess damage for Prince of Power.

With 3 gifts this card is really strong. Getting a card back makes the total effective cost the same as Limitless Stamina. So you basically have Limitless Stamina that give you a tough status card, readies an upgrade, and cycled a card from you deck.

When you have no gifts this card is Uppercut which is not very good.

When you have 1 gift this card is the Venom Blast or similar hero kit attack events, which is pretty good.

When you have 2 gifts this card is only matched by Ionic Blast if Wonder Man has Mr. Hollywood out. 1 cost for 5 damage is amazing.

When you have all 3 gifts and you get to do 5 damage on a 0 cost card, you pretty much feel like you are cheating.

It is easy to get greedy and feel like if you don't get this for free or 1 cost that you aren't getting a good deal, but the reality is that if you get 1 gift out this card is good.

One of the best allies in the game. Not only do you get to draw a card every turn with him, one of your labors puts him into play for free every game. The one tricky part to keep an eye out for is having more minions in play than you can defend against because Cho is not sturdy and will die easily if he gets attacked. Using Herc's helm is a good way to draw an attack to Herc instead, but you have to get that out first. Cho is also great in a Sidekick build using Side-by-Side to ready him and draw another card.