It took them all by surprise. Thor was first to rise
"Brother how did you" his sentence was cut short as Loki sent his brother back to the form of a toddler about 2 years old an passed out unconscious
Tony stood up next his body lurching forward in pain as he shoved pepper out of the way as Loki hit him and despite his action to get pepper out of the way her to they changed into 2 year olds also passing out. Bruce was next. Then Steve but Steve had his shield and while he was hit part of it reflected back to Loki turning him to a toddler too. As soon as he turned to a toddler the scepter exploded. Knocking the two remaining adults back against the glass and making everyone losing consciousness