mtg best proliferate cards o:proliferate · Scryfall Magic: The Gathering Search Best Mono-Blue Proliferate Commanders |

Morophon is a seven mana colorless Shapeshifter that lets you choose a Creature type when it enters, and then makes all of your spells of that type cost WUBRG less to cast, this only reduces the colored mana you pay, and it even gives those Creatures a +1/+1 boost

All other rules and effects that check power or toughness use the real values

You can respond to it by playing instant-speed effects

Color: Blue

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Not only will these get you back your instants and sorceries to make the deck go nuts, you can also get back permanents as well