If youre playing a really aggressive deck or just want to protect all your characters at the risk of banishing them, I guess this card could be alright
But for an instant-heavy deck which can hold up 3UU with little effort, this offers a lot of extra security for almost no cost
Her first ability encourages the use of evasive creatures, which you can then swap out for ninjutsu users from your hand (or Yuriko herself) once they get through unblocked, and her second ability rewards such switcheroos with card draw and AOE damage

Hans, Run!" Aang, Destined Savior Accelerate Act of Aggression Act of Treason Adeliz, the Cinder Wind Admiral Brass, Unsinkable Adult Gold Dragon Agatha of the Vile Cauldron Agility Bobblehead Ahn-Crop Crasher Akki Drillmaster Akki Lavarunner Akki Lavarunner Akoum Battlesinger Akoum Firebird Akoum Stonewaker Akroan Conscriptor Akroan Crusader Akroma's Memorial Akroma, Angel of Wrath Akroma, Angel of Wrath Avatar Akroma, Vision of Ixidor Akuta, Born of Ash Alaundo the Seer Alesha's Vanguard Alex Wilder, Runaway Alexios, Deimos of Kosmos Alibou, Ancient Witness Alibou, Ancient Witness Alien Invasion All-Star Kicker (playtest) Altac Bloodseeker Amber Gristle O'Maul Ambuscade Shaman Ambush Party Amethyst Dragon Amethyst Dragon Amonkhet Raceway Amped Up Amphin Mutineer Anathemancer Angel of Indemnity Angelfire Ignition Anger Angrath, the Flame-Chained Animus of Predation Anje Falkenrath Ankle Shanker Anzrag's Rampage Apprentice Necromancer Arachnomania Araumi of the Dead Tide Arbalest Engineers Arc Runner Arcbound Hybrid Arcbound Slasher Archfiend of Sorrows Archwing Dragon Arclight Phoenix Ardoz, Cobbler of War Ardyn, the Usurper Arena of Glory Argivian Avenger Arlinn Kord Arlinn, Embraced by the Moon Arlinn, the Moon's Fury Arms Race Arni Brokenbrow Arthur, Marigold Knight Artificer's Dragon Artistic Process

Since Najeelas first ability doesnt specify nontoken, each Warrior token you generated during the first combat phase will generate another, leading to a huge army that can end games out of nowhere