So you need to end up in situations where the 3 damage either wins you the game or you take down an important creature, but a lot of the time their important creature will be attacking you
Though Disney Lorcanas initial set, The First Chapter, launched with three Starter Decks to give players a taste of all six Ink types, each subsequent set has launched with just two pre-constructed decks, and Shimmering Skies is no different
Tetravus is another creature along these same lines, and one that provides different benefits
Most of the value behind the Precon lies with all the new cards, of which there are plenty
Arcanis the Omnipotent Arcanis the Omnipotent very famously goes infinite with Mind Over Matter to draw your entire deck, which blue has no shortage of ways to exploit (looking at you, Thassa's Oracle)
Restricted Office destroys all creatures with power three or greater when it unlocks, so not as good as a hard board wipe, but more often than not itll deal with any problems you might be facing