There was some discussion about the item/ally/faction chains here, I will use that as a basis for the following chain:Weariness of the Heart wrote:The prowess of a character is modified by -1 until the end of the turn. Alternatively, the target character is forced to make a corruption check. Cannot be duplicated.
<start chain>
(i) tap character to declare the play of an item and place that item with the character*
(ii) opponent may reveal on-guard per rules because the company played a resource that potentially taps the site
<nothing more is declared, chain begins to resolve>
(iii) item is (succesfully) played: tap the site
<end chain>
*item is not considered in play until it has resolved
Now let's say at (ii) opponent uses on-guard Weariness of the Heart to induce a corruption check.
Normally a corruption check is declared, you can respond by tapping in support and playing cards, then the chain unwinds and at the CC resolution dice are rolled. According to the CRF quote however, here the CC has already resolved prior to the current chain, which essentially means the dice have already been rolled. So it looks like there is no chance to support this CC? So a chain with Gloin playing Durin's Axe would look like this:CRF: Turn Sequence Rulings: Site Phase: On-Guard Cards wrote:A revealed on-guard card retroactively takes effect as though it were both declared and resolved immediately prior to the chain of effects during which it was revealed.
<start chain>
(i) Gloin taps to declare the play of Durin's Axe and it is placed with Gloin (but Axe is not considered in play yet)
(ii) opponent reveals Weariness of the Heart for a corruption check, the dice are rolled immediately in the middle of this chain (CPs from Axe do not count)
(ii') If Gloin failed the check he is eliminated/discarded, Axe is discarded and the chain ends, otherwise continue with chain as normal
<nothing more is declared, chain begins to resolve>
(iii) Axe is (succesfully) played: tap the site (Axe is now considered in play)
<end chain>
Does that make sense?