I do think one option that you have is replacing all signets with mana dorks like Birds of Paradise, Llanowar Elves, and Elvish Mystic If you are able to find more slots, I think you should consider: Hullbreaker Horror, Thryx, the Sudden Storm (dependent on count of spells with 5 cmc or more), Soothsaying, Mulldrifter, Beast Whisperer (dependent on final count of creatures), Rishkar's Expertise, Turntimber Symbiosis Flip , See the Unwritten, Balefire Dragon, Scourge of the Throne, Bane of Progress (I feel like you do not have a ton of high value artifacts or enchantments that would cause this to cripple you), Momir Vig, Simic Visionary, and Genesis Storm
Whats more, you can add card-draw punishment or discard payoffs with cards like Sheoldred, the Apocalypse or Waste Not
Two million years ago, the first known Pokmon walked the earth
Yet so far, aiming for an ink curve has been my main driver for mulligan decisions
Slifer the Sky Dragon, Obelisk the Tormentor and The Winged Dragon of Ra were so powerful that their use could injure or kill duelists involved in battles involving the cards
Celebi Celebis Traverse Time attack could be a really solid pick for Grass box decks especially those running the powerful Mega Venusaur ex strategy
