It doesn't really matter that the replacement effect is optional, it still applies here.) Thus there are two replacement effects trying to modify the same damage
There is also another rule: 201.2
If the permanent that was turned face up is no longer on the battlefield when Sumala Sentry's triggered ability resolves, you'll still put a +1/+1 counter on Sumala Sentry
Our shop provides an Authentic guarantee on every mystery box, ensuring all cards are original, factory-sealed, and sourced through verified channels
Its primary ability acts as a splashy doubler for graveyard strategies, allowing you to create a token copy of any creature that enters the battlefield or is cast from your graveyard once each turn
That being said, this card is more than powerful enough to have had a last impact on Standard