mtg reminder cards Upkeep/Endstep Trigger for MTG: 2 pack trigger coins – The Adventurer's Press A Gentle Reminder: Looking Past

Professor Hojo's first ability reduces only the amount of generic mana in the first activated ability you activate during your turn that targets a creature

However, if theyre not for you and you want to try and fight treasure heavy decks, you can take a look at my piece on tackling treasures in Commander for some ideas

They didn't use spears or any kind of polearm, instead relying on more on a firearm called a Dragon

It just uses the word, "Swamp." Another good example is extort, which has the Black and White symbols in the reminder text, or a fetchland like Mountain Valley that clearly is Red and Green in flavor and mechanically, but is allowed in decks without Red or Green