mtg reminder cards Upkeep/Endstep Trigger for MTG: 2 pack trigger coins – The Adventurer's Press Special Actions Aren't THAT Special

As we alluded to before, these four cards are from The Lost Caverns of Ixalans accompanying Commander set

In my first The Dark booster I got Witch Hunter today marked as rare U1 and Ball Lightning another rare U1 and then Maze too in a common

You have 2 mana to start the Hydra and then XX in the cost

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

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