Collectible Card Game Headquarters

I'm trying to code a card so that it is exiled when I play it, but is put into the graveyard at the beginning of my end step. I can get the card to exile, but what would the code look like to return it to my graveyard at the beginning of my end step? I don't really understand delayed triggers, so if anyone wise and kind could provide code that might do the trick along with annotations for my reference, I would be extremely grateful. Thanks in advance for all of your help.

The following code will be somewhere inside an ability:

Code: Select all

    <RESOLUTION_TIME_ACTION>
    local card = EffectSource() -- if it's not the card itself that you want to move, change this
    if card ~= nil then
       EffectDC():Protect_CardPtr(COMPARTMENT_ID_EFFECT_SOURCE) -- protect the pointer before moving the card, or you won't find it anymore! EffectSource is a special pointer whose register number is accessible with the COMPARTMENT_ID_EFFECT_SOURCE constant so you need to protect it this way: if it's not the card itself that you want to move, change this as well
       card:Exile() -- you can move the card now
    end
    </RESOLUTION_TIME_ACTION>
    <RESOLUTION_TIME_ACTION>
    local card = EffectSource() -- if it's not the card itself that you want to move, change this too
    if card ~= nil then
       local delayDC = EffectDC():Make_Chest(1) -- make a chest in a free register
       delayDC:Set_CardPtr(0, card) -- save the card (no need to protect the pointer here, the zone change has been already done)
       MTG():CreateDelayedTrigger(1, delayDC) -- start the delayed trigger with resource_id="1" and pass delayDC to it, which will become the trigger's EffectDC
    end
    </RESOLUTION_TIME_ACTION>

Then you have the delayed trigger as an additional ability on the card:

Code: Select all

  <TRIGGERED_ABILITY resource_id="1">
    <TRIGGER value="BEGINNING_OF_STEP">
    return MTG():GetStep() == STEP_END_OF_TURN
    </TRIGGER>
    <RESOLUTION_TIME_ACTION>
    local card = EffectDC():Get_CardPtr(0) -- because that's where you saved the card on delayDC
    if card ~= nil then
       card:PutInGraveyard() -- move the card again
    end
    </RESOLUTION_TIME_ACTION>
    <CLEANUP fire_once="1" />
  </TRIGGERED_ABILITY>

Note that I made a delayed trigger "at the beginning of the next end step", not necessarily your end step, because Magic cards usually work this way. If you really want your end step only, then add simple_qualifier="controller".