are gold and silver pokemon cards real I Found Star BUT THEY'RE ACTUALLY MADE OF GOLD! What does the silver on

If tapping a creature using convoke wouldn't pay for any mana in that spell's cost (because you've already paid for all of the mana in the spell's cost by tapping other creatures or because you've already paid for all of the generic mana in the cost by tapping other creatures and the creature you want to tap doesn't share a color with any of the remaining mana symbols in the spell's cost), you can't use convoke to tap that creature

While Standard players should always be prepared for Mono-Red decks whenever a new Standard set releases, this rule is especially true with the arrival of March of the Machines

By itself, it only provides benefits when it enters the graveyard from the battlefield

When it works you have an incredible time and at worst you just play land drops until you find something fun