AI DraftApr 28, 2026
Lithoform Engine + Vexing Puzzlebox
AI draft — not yet human-reviewed. Check citations and flag anything that looks wrong. How pages are reviewed.
Overview
You can use Lithoform Engine’s 
,
ability to copy Vexing Puzzlebox’s “: Add one mana of any color. Roll a d20.” activated ability. The copy is put onto the stack (it’s a copy of an activated ability) , and when that copy resolves it will add the mana and make you roll a d20, which in turn can cause Vexing Puzzlebox’s triggered ability (“Whenever you roll one or more dice…”) to trigger and put charge counters on the Puzzlebox. Note that the original Puzzlebox tap ability, when you activate it directly, is a mana ability that doesn’t use the stack and cannot be responded to ; the copy created by Lithoform Engine is put on the stack instead .
, ability to copy Vexing Puzzlebox’s “: Add one mana of any color. Roll a d20.” activated ability. The copy is put onto the stack (it’s a copy of an activated ability) , and when that copy resolves it will add the mana and make you roll a d20, which in turn can cause Vexing Puzzlebox’s triggered ability (“Whenever you roll one or more dice…”) to trigger and put charge counters on the Puzzlebox. Note that the original Puzzlebox tap ability, when you activate it directly, is a mana ability that doesn’t use the stack and cannot be responded to ; the copy created by Lithoform Engine is put on the stack instead .Step 1
Choose Lithoform Engine’s , ability and activate it, paying costs and choosing as the target the Vexing Puzzlebox’s printed tap-for-mana activated ability (: Add one mana of any color. Roll a d20.). When you activate Lithoform Engine’s ability you pick the target ability and pay costs; the Engine’s ability goes on the stack (standard activation).
, ability and activate it, paying costs and choosing as the target the Vexing Puzzlebox’s printed tap-for-mana activated ability (: Add one mana of any color. Roll a d20.). When you activate Lithoform Engine’s ability you pick the target ability and pay costs; the Engine’s ability goes on the stack (standard activation).Step 2
When Lithoform Engine’s copy ability resolves it creates a copy of the targeted activated ability and puts that copy onto the stack (copies of activated abilities are put on the stack) .
Step 3
The copy is now an ability on the stack under your control. Players get priority and may respond to that copy as they would any other ability on the stack — unlike the original Puzzlebox tap ability, which, when activated directly, is a mana ability that doesn’t use the stack .
Step 4
If the copy resolves, it will perform the same effects as the original ability: add one mana of any color to your mana pool, then instruct you to roll a d20. The copy copies the characteristics and choices of the original ability .
Step 5
When you roll the d20 as part of the copy resolving, any relevant triggered abilities see that you rolled one or more dice. Vexing Puzzlebox has a triggered ability that reads “Whenever you roll one or more dice, put a number of charge counters on this artifact equal to the result.” That triggered ability will trigger if the Puzzlebox is on the battlefield when the roll occurs, and will be put onto the stack and later resolve .
Resolution
Activate Lithoform Engine’s first ability, target the Puzzlebox’s tap-for-mana activated ability, and when Lithoform Engine’s ability resolves it creates a copy of that activated ability and puts the copy onto the stack . The copy (on the stack) will resolve later; when it resolves it adds one mana to your mana pool and instructs you to roll a d20. That roll can cause Vexing Puzzlebox’s triggered ability to trigger and put charge counters on the artifact. The original Puzzlebox tap ability (if you activate it directly) is a mana ability that doesn’t use the stack and can’t be responded to , but the copy made by Lithoform Engine does use the stack because copies of activated abilities are put onto the stack .
Feedback