2021-07-23 : Flumph's ability only triggers once each time it is dealt damage, even if multiple sources are dealing damage to it at once.

2021-07-23 : Flumph's ability will trigger even if it is dealt lethal damage.

2021-07-23 : Flumph's triggered ability is not optional. You must target an opponent if able.

2021-07-23 : If the opponent is somehow an illegal target for Flumph's ability when it tries to resolve, neither player will draw a card.