The rules says:
"When you put the Demon of Argos into play, each opponent moves their sorcerer token back one space on their summoning gauge and draws a power card.
Resolve this action in playing order.
The power card drawn cannot be discarded.
After resolving the effect of the Demon of Argos, the players who have too many power cards in play compared to their summoning gauges do not have to sacrifice cards.
I do not have to sacrifice,
or
I must not sacrifice?
I ask, because, usually in my real games, when a summoning gauge drop under the number of played cards, the player can choose:
sacrifice 1 played card (to balance summoning gauge and number of played cards)
or
keep all played cards in game
I play it wrong?
"When you put the Demon of Argos into play, each opponent moves their sorcerer token back one space on their summoning gauge and draws a power card.
Resolve this action in playing order.
The power card drawn cannot be discarded.
After resolving the effect of the Demon of Argos, the players who have too many power cards in play compared to their summoning gauges do not have to sacrifice cards.
I do not have to sacrifice,
or
I must not sacrifice?
I ask, because, usually in my real games, when a summoning gauge drop under the number of played cards, the player can choose:
sacrifice 1 played card (to balance summoning gauge and number of played cards)
or
keep all played cards in game
I play it wrong?