If you cast a spell "without paying its mana cost" (C.R. 117.9), you can't choose to pay any other alternative cost to cast the spell (such as awaken and overload [C.R. 702.112a, 702.95a]) (C.R. 117.9a), but additional costs are applied to casting that spell (including kicker and multikicker [C.R. 702.32a, 702.32c]) (C.R. 117.9d). (See also this thread.) In addition, while casting such a spell this way, "the only legal choice for X is 0" (C.R. 107.3b) (with Spoils of War being the only exception at the time of this writing [C.R. 107.3c]).
Howe does this interact with:
* Awaken
* Overload
* (Multi)kicker
*
is to my knowledge, but how does this spell work with Awaken, Overload and Kicker?
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