Really there are a lot of better choices out there for a single blue mana if all you care about is gaining life / preventing yourself from taking damage
8, 2026 This card's effect caused the DP of my opponent's Digimon to become 0
"Goku" monsters you control cannot declare an attack this turn
However, Xyz Monsters don't have Levels, neither do Links, and Pendulum Monsters cannot be sent to the graveyard from the field coupled with the current metagame where you probably do not want to be helping your opponent send their monsters to the graveyard (especially ABC monsters), one would think whether Mist Valley Apex Avian is worth the trouble of a Ninja engine
In this case, your turn simply continues without switching over
Legendary Creature Raccoon Warrior2/4 At the beginning of your first main phase, add or for each Raccoon you control