I am not sure about the timing of events "at the beginning of your turn". So we had a situation which seems to be quite a good example to show the issue:

I have a "The Glittering Tower"(all cards please see below), "Initiate of Saphery" and a "Shadow Warrior" on my side (all in the Kingdom for simplicity reasons). My opponent has a "Disciple of Khaine" in his Battlefield.

Since I can decide which of the effects takes place first, I use the Shadow Warriors Ability. My opponent assigns the damage on his Disciple of Khaine, then pays 2 resources and redirects the damage to Initiate of Saphery. The damage is dealt, then I use the Initiates Action and heal it's damage, which should trigger The Glittering Tower, so I can inflict another point of damage.

Is this resolution correct?

Also, if the Disciple of Khaine would have redirected it's damage to the Shadow Warrior(1hp), then I guess I would not be able to heal it!? It seems that only damage which is already resolved on the unit, is heal-able, so in the case of the Shadow Warrior he would be dead already!?

The Glittering Tower
deckbox.org/whi/The%20Glittering%20Tower
Kingdom. Action: Whenever you heal a unit, deal 1 damage to one target enemy unit or one target section of an opponent's capital.

Initiate of Saphery
deckbox.org/whi/Initiate%20of%20Saphery
Kingdom. Action: At the beginning of your turn, heal 1 damage from each unit you control.

Shadow Warrior
deckbox.org/whi/Shadow%20Warrior
Forced: At the beginning of your turn, each opponent must assign 1 damage to any unit in his battlefield.

Disciple of Khaine
deckbox.org/whi/Disciple%20of%20Khaine
Action: Spend 2 resources to redirect one combat damage just assigned to this unit to another target unit.

The FAQ says to multiple events:
When two card effects occur during the same time. The player whose turn it is currently applies his in any order of his choice. Then, the opponent applies his card effects in any order of his choice.

Krabat said:

He can not do that, as shadow warriors ability is not doing combat damage and disciple of khaine can only redirect combat damage (this is a crapy card in fact).

There is now a phase 0 (begining of the turn phase) read the FAQ about it :

During this phase first resolve all your forced effect active player chose the order of resolution

Then all begining of the turn action active player chose the order of the action.

Then both players can take action.

Always remember that you can not respond to a forced effect by an action and so add the forced in the stack of resolution of an action pile.

Shindulus said:

So, imagine Disciple of Khaine is able to redirect all kinds of assigned damage. Still he can not respond to the forced effect of the Shadow Warrior? So, all forced effects resolve immediately, unless they directly trigger another forced effect? Also, no Action / Tactic can be played between Forced effects? Is there some reference in the FAQ, cause I didn't find any.

It's quite like you said, mostly about that during begininging of the turn you can not play action between begining of the turn forced effect and more generaly you can not answer to a forced effect by an action (but this is simply the rules).

You should find Entropy42 signature on this forum for a link to a more complete FAQ.

Shindulus said:

You do not have to do all your "at the beginning of your turn" actions at once. If a card says "Action: At the beginning of your turn..." it only means that that action can only be played during your 0 phase and that it can only be activated once.

That's not what I have said as you quote ;-).

If you could really quote something wrong about what I am saying I would be glad it will help me.