Let's say Phoebe steals the text boxes of both Beast of Burden (power and toughness equal to the number of creatures on the battlefield) and Psychosis Crawler (power and toughness equal to the number of cards in your hand)
He requires a strong mana base and lots of ETB-focused multicolor creatures, but in the right shell, he can churn out relentless tempo and board advantage
Curiosity doesn't trigger if the enchanted creature deals damage to a planeswalker or to a battle
Enchantment Aura Common Ryan Pancoast null/null NOT LEGAL Standard NOT LEGAL Future NOT LEGAL Historic NOT LEGAL Timeless NOT LEGAL Gladiator NOT LEGAL Pioneer NOT LEGAL Explorer LEGAL Modern LEGAL Legacy LEGAL Pauper LEGAL Vintage LEGAL Penny LEGAL Commander LEGAL Oathbreaker NOT LEGAL Standardbrawl NOT LEGAL Brawl NOT LEGAL Alchemy LEGAL Pauper Commander LEGAL Duel NOT LEGAL Oldschool NOT LEGAL Premodern LEGAL Predh Enchant land As this Aura enters, choose a basic land type
While the game has seemingly passed this card by, as a player who came of age during the release of Onslaught, I couldnt live with myself if I didnt at least mention this mighty morphing powerhouse Wizard
TL;DR There are a lot factors that affect a removal spells value beyond its mana cost and creature support (both those two are arguably the most important factors)