The effect from the ability overwrites other effects that set power and/or toughness if and only if those effects existed before the ability resolved. It will not overwrite effects that modify power or toughness (whether from a static ability, counters, or a resolved spell or ability), nor will it overwrite effects that set power and toughness which come into existence after the ability resolves. Effects that switch the creature's power and toughness are always applied after any other power or toughness changing effects, including this one, regardless of the order in which they are created.
Figure of Destiny
Figure of Destiny's abilities overwrite its power, toughness, and creature types. Typically, those abilities are activated in the order they appear on the card. However, if Figure of Destiny is an 8/8 Kithkin Spirit Warrior Avatar with flying and first strike, and you activate its first ability, it will become a 2/2 Kithkin Spirit that still has flying and first strike.
Magic: The Gathering · ™ & © Wizards of the Coast · Illus. Scott M. Fischer
Card data via Scryfall. Rarix is fan-made; not endorsed by the rights holders.
