In terms of the setlist, Bloodmoon Ursaluna exs Alternative Art card is number 216/226
On top of that, Generous Gift is in almost every preconstructed deck that plays White, so you got really no reason to pass on this fantastic removal
Card Set(s) -ONE PIECE CARD THE BEST- [PRB-01] CARD VIEW OP01-041 | R | CHARACTER Kouzuki Momonosuke Attribute Slash Block Icon 1 Type Land of Wano/Kouzuki Clan Effect [Activate: Main] (You may rest the specified number of DON
This alternate way of phasing out is known as phasing out indirectly. An Aura, Equipment, or Fortification that phased out indirectly wont phase in by itself , but instead phases in along with the permanent its attached to
The other activated ability the creature must have can be any activated ability, including one that can't be activated at the moment, or even one that can't be activated while the creature is on the battlefield
Its a great option to have in the main or sideboard to deal with a problematic creature, enchantment, or even Planeswalkers if their mana value is low enough