For example, here, a judge pointed out a legitimate omission in the rules- the CR defines Trinisphere as an additional cost, which it's not supposed to
Well Mark, Let me see if I can explain why those two rules don't actually contradict
Having creatures enter the battlefield with at least one +1/+1 counter gets a lot of support cards rolling, be it Rishkar, Peema Renegade or Atraxa, Praetors' Voice, and sets up payoffs like Inspiring Call
For example, if you wanted to play Mythos of Nethroi in your deck at the cost of foregoing the extra effect, you wouldnt be able to use it

Blackcleave Cliffs Blood Crypt Blooming Marsh Boseiju, Who Shelters All Botanical Sanctum Bottomless Vault Bountiful Promenade Breeding Pool Cactus Preserve Caldera Lake Canopy Vista Canyon Slough Castle Ardenvale Castle Embereth Castle Garenbrig Castle Locthwain Castle Vantress Cathedral of War Cave of the Frost Dragon Celestial Colonnade Chocobo Camp Choked Estuary Cinder Glade City of Ass Clifftop Retreat Coastal Peak Commercial District Concealed Courtyard Copperline Gorge Cori Mountain Monastery Creeping Tar Pit Crypt of Agadeem Dalkovan Encampment Darkslick Shores Deathcap Glade Den of the Bugbear Deserted Beach Dragonskull Summit Dreamroot Cascade Drowned Catacomb Dungeon Descent Dwarven Hold Eclipsed Steppe Elegant Parlor Emeria, the Sky Ruin Exclusive Nightclub Festering Thicket Fetid Pools Field of the Dead Fire Nation Palace Flamekin Village Foreboding Ruins Fortified Beachhead Fortified Village Frostboil Snarl Furycalm Snarl Game Trail Gilt-Leaf Palace Glacial Fortress Glasspool Shore Glittering Massif

One of the standard payoffs for opponents drawing extra cards is you drawing an extra card, which you can do with piggyback cards like Faerie Mastermind, The Council of Four, and Trouble in Pairs