Garth One-Eye The original Modern Horizons was conceived as a meta-commentary on the game of Magic itself
As a rule of thumb, Ive found that if the card(s) in question cannot win you the game outright, the answer is usually No. Cards like Insurrection, Finale of Devastation, Rise of the Dark Realms, Armageddon, and Expropriate are cards that often belong to this category, and should be added very sparingly to your deck
City Pigeon is a Spider-Man special that wants to leave the battlefield and leave behind enough food for a token, perfect for flicker and food strategies
Theoretically, Ponder gives you four chances to find it: three by looking at the top three cards of your library, and one more in case you want to shuffle them all away and draw after
Being able to grab nonbasic Lands is a pretty big game
Meren is more of a Reanimator deck that can do some sacrificing for value, and Chatterfang is a Squirrel typal list and also a tokens deck that wants to swarm the board, not chew through it