Wow. This card is either going to win you the game (opponent cant reach it) or its going to lose you the game (because of the Dying wish). Regardless of what happens i find this card really interesting and i would love to see it exist. However there are a few changes I would like to suggest.
1) Lower the mana cost to 5. Although the effect is powerful 6 mana is a big investment especially for a 0/5 that has no impact when it comes into play (unless you have minions on board).
2) Lower Spirit of the Martyr attack to 2. Having three attack is a bit too much if you consider that you might surround your general with 8 of them giving you 24/16 of stats. Also Soul shatter pact is very scary with this card.
3) Change the cost of Spirit of the Matryr to 1. Why does this matter if its a token? ehh it doesnt really but if it got returned back to your hand you wouldn't feel as bad playing it again.
4) Lower the health of Shrine of the Martyr to 4. Now here's the thing. You might call me crazy but 5=6. That's because generals have a base attack of 2 so they would still have to hit it 3 times whether it had 5 or 6 health. Furthermore you don't care about its health as long as it lives somewhere in a corner providing you infinite value. Now If your opponent somehow reaches it, hits it twice or uses costly removal on it you are happy because you've gained an advantage. Now you have more minions, your opponent wasted resources and time that could be spent developing their own board. Lastly, you might actually want it to die at some point when you are low on health.
That's all I have to say ... for now