Bloomburrow is on track to be 2024s most impactful Magic: The Gathering set, which is no small feat after the popularity of Outlaws of Thunder Junction and the incredible power boosts found in Modern Horizons 3
More games of Sealed Deck are won by casting a creature every turn starting on turn two or three than any other way
Unfortunately, however, Delighted Halfling is simply better in almost every single aspect
The trigger event doesn't have to specifically refer to "creatures." In these cases, the trigger event may also refer to something being "put into a graveyard from the battlefield." For example, if the equipped creature or an emblem you own has an ability that triggers "whenever an artifact is put into a graveyard from the battlefield," that ability would trigger twice if an artifact creature died
It's okay if any of them are already tapped, and it's okay if any of them are controlled by someone other than the defending player
That being said, Ugins Labyrinth has quite the downside and very specific deck building restraints