black rat cards mtg Elite Mono Deck - Discard - Very Powerful - Modern Legal - Custom Built - Magic The Gathering - Supertype: Legendary, Subtype: Rat, 21

Your opponents still have a chance to block with their Goaded creatures after you attack, but Seifers other ability makes that less likely

However, the worlds where I want to play blue in this format are disproportionately likely to be worlds where blue decks dont need Revolutionary Rebuff

That core is really flexible in Pioneer, but heres a start: Creatures (19) 1 Scavenging Ooze 2 Deathrite Shaman 1 Courser of Kruphix 4 Satyr Wayfinder 1 Jace, Vryn's Prodigy 1 Tireless Tracker 4 Stitcher's Supplier 4 Uro, Titan of Nature's Wrath 1 Lurrus of the Dream-Den Planeswalkers (1) Lands (23) Spells (17) Pioneer Sultai Delirium decks usually dont play Stitchers Supplier, but Uro allows you to take advantage of the milling that it offers and its a nice way to power up your Agadeems Awakenings, especially since it allows you to also play Deathrite Shaman

As for EDH, you can build around this blue commander or just add Kiora to the 99 with your sea monster commanders

Wedding Ring might be unconventional, but its a great source of card draw

All right, so we've got a controlling, taxing hugs deck that can make creatures huge and evasive