Yes, I did say right at the top that you cant lock down multiple opponents playing these types of cards, and thats still true
Until end of turn, Ursine Monstrosity gains indestructible and gets +1/+1 for each card type among cards in your graveyard
We sure are
That, as it turns out, pretty much wins you the game most of the time

Acclaimed Contender Accorder Paladin Adelbert Steiner Adeline, Resplendent Cathar Adeline, Resplendent Cathar Adriana, Captain of the Guard Adun Oakenshield Agatha's Champion Agent of Stromgald Alaborn Cavalier Alaborn Veteran Angelfire Crusader Ardenvale Paladin Ardenvale Tactician Argivian Cavalier Armored Skyhunter Armored Wolf-Rider Armory Paladin Arna Kennerd, Skycaptain Arrogant Bloodlord Arthur, Marigold Knight Arvad the Cursed Aryel, Knight of Windgrace Ashenmoor Liege Attended Knight Ayara's Oathsworn Aysen Crusader Azorius Knight-Arbiter Azorius Skyguard Balan, Wandering Knight Bartolom del Presidio Basri's Lieutenant Basri, Tomorrow's Champion Battle Angels of Tyr Beastrider Vanguard Belle of the Brawl Benalish Cavalry Benalish Honor Guard Benalish Knight Benalish Lancer Benalish Marshal Besotted Knight Black Knight Blacklance Paragon Blazing Blade Askari Blood Knight Blood-Cursed Knight Bloodcrazed Paladin Bloodcrusher of Khorne Bloodsworn Knight Bloodsworn Steward Bloodthirsty Conqueror Boartusk Liege Bogardan Lancer Bold Impaler Border Guardian Breathless Knight Bristlebane Outrider Broodguard Elite Burning Shield Askari Burning Sun Cavalry Burning-Yard Trainer Cabal Paladin Cadaverous Knight Candlelit Cavalry Capashen Knight Capashen Templar Caradora, Heart of Alacria Caravan Escort Cavalier of Dawn Cavalier of Flame Cavalier of Gales

Specifically, I have three versions to show you, which you can also click on to see it in a larger view: So the three Celebi cards are: ALL: all three cards are appropriately sized pixel-perfect such that the individual bits in the Dot Code bars are exactly one pixel in size