pokemon obsidian flames booster pack Scarlet & Violet Flames, Dozens of Pokémon and Trainer cards with special illustrations. Pokémon Scarlet & Violet Obsidian

Note that all three are instant-speed and within the 5-10 mana range

It also keeps Hydro-Man safe from sorcery-speed removal and board wipes, though it removes it as a blocker, so theres some trade-off for your forbidden blue ramp

Alternatively, Lumbering Lightshield can perpetually increase the casting cost of a card in your opponents hand by one colorless mana the affected card then maintains that increase whether its cast from hand or somewhere else, like from the graveyard with Flashback or from exile with Foretell

I know that you have fine taste for booster packs and have come to my castle to find out all that Innistrad: Crimson Vow has in store

RRC - Singe 90 Flip a coin