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the strat reads:

COGNIS OVERWATCH

When a mind-link connects the powerful machine spirit of a cognis weapon with its bearer, it can create a holy synergy that briefly spikes performance in man and machine.

--- Use this Stratagem before an ADEPTUS MECHANICUS unit from your army fires Overwatch. Cognis weapons are fired using the firing model’s Ballistic Skill when resolving these attacks. For the purposes of this Stratagem, a cognis weapon is any weapon profile whose name includes the word ‘cognis’ (e.g. cognis heavy stubber, twin cognis lascannon). ---


My question is, is this stratagem in play for the entire charge phase or for only one charge attempt?

The situation is my opponent charged my unit with two of his units, i played the strat, his first unit failed its charge and I overwatched him via the strat, taking out several models. He then moves to his second unit which happened to be a character, he makes his charge distance... is my stratagem still in play for this overwatch or was it used up on the previous overwatch?

Cyborg787 wrote:
the strat reads:

COGNIS OVERWATCH

When a mind-link connects the powerful machine spirit of a cognis weapon with its bearer, it can create a holy synergy that briefly spikes performance in man and machine.

--- Use this Stratagem before an ADEPTUS MECHANICUS unit from your army fires Overwatch. Cognis weapons are fired using the firing model’s Ballistic Skill when resolving these attacks. For the purposes of this Stratagem, a cognis weapon is any weapon profile whose name includes the word ‘cognis’ (e.g. cognis heavy stubber, twin cognis lascannon). ---


My question is, is this stratagem in play for the entire charge phase or for only one charge attempt?

The situation is my opponent charged my unit with two of his units, i played the strat, his first unit failed its charge and I overwatched him via the strat, taking out several models. He then moves to his second unit which happened to be a character, he makes his charge distance... is my stratagem still in play for this overwatch or was it used up on the previous overwatch?

It only works for a single set of Overwatch attacks ("these attacks", as in, the attacks done when the unit "fires Overwatch").

This says it all:

"Use this Stratagem before an ADEPTUS MECHANICUS unit from your army fires Overwatch. Cognis weapons are fired using the firing model’s Ballistic Skill when resolving these attacks." (Embhasis mine)

"when resolving these attacks" is referring to the Overwatch attacks you are about to fire, this is because you use the strat "before an ADEPTUS MECHANICUS unit from your army fires Overwatch"

So before they fire Overwatch, you use the Strat, and for these attacks (the Overwatch attacks they are about to fire), they get to do as the Strat says.

Thank you both for confirming my own interpretation.

Cheers!

It also sounds like you guys did the entire charge phase wrong.

Your opponent declares his charges 1 unit at a time, suffering overwatch and then testing charge distance before moving to the next potential charging unit.

You had indicated that he both declared both charges and tested range before you overwatched.

Step 1: pick charging unit
Step 2: declare target
Step 3: suffer overwatch
Step 4: test range and move(if in range)
Step 5: start at step 1 with new charging unit.

 Kommissar Kel wrote:
It also sounds like you guys did the entire charge phase wrong.

Your opponent declares his charges 1 unit at a time, suffering overwatch and then testing charge distance before moving to the next potential charging unit.

You had indicated that he both declared both charges and tested range before you overwatched.

Step 1: pick charging unit
Step 2: declare target
Step 3: suffer overwatch
Step 4: test range and move(if in range)
Step 5: start at step 1 with new charging unit.

Basic rules have the charge phase
1) Choose unit to charge wtih
2) Choose targets
3) enemy resolves overwatch
4) Roll 2D6 and make charge move

You would check range before overwatch to make sure the target unit is within 12" and thus a valid target for the charge.that checking range has nothing to do with rolling 2d6 and making your charge move. Checking range before declaring targets is not playing wrong.

 doctortom wrote:

 Kommissar Kel wrote:
It also sounds like you guys did the entire charge phase wrong.

Your opponent declares his charges 1 unit at a time, suffering overwatch and then testing charge distance before moving to the next potential charging unit.

You had indicated that he both declared both charges and tested range before you overwatched.

Step 1: pick charging unit
Step 2: declare target
Step 3: suffer overwatch
Step 4: test range and move(if in range)
Step 5: start at step 1 with new charging unit.

Basic rules have the charge phase
1) Choose unit to charge wtih
2) Choose targets
3) enemy resolves overwatch
4) Roll 2D6 and make charge move

You would check range before overwatch to make sure the target unit is within 12" and thus a valid target for the charge.that checking range has nothing to do with rolling 2d6 and making your charge move. Checking range before declaring targets is not playing wrong.

I said Test range, not check range.

Test as in roll the dice for your range.