sleeved card shuffler by Bohemian Shuffles one or two decks completely Electronic card shuffler works with

3 Warriors of Tiamat (Arena) ( F ) - A 4 mana 4/2 that gets you another 4 mana 4/2, both with haste

Assuming you only cast two Hydras per turn from that point on, youre still gaining eight mana every single turn just by having them out

This perhaps isnt a great tool for decks that are after casting their interaction at instant speed that they would otherwise be unable to be cast, but if youre trying to sneak in some big threats, or even hold up your interaction while deploying your threats if nothing scary happens, Final-Word Phantasm looks promising

Pokmon Card Game [EN Ver.] Paldean Fates Booster Bundle Exclusive Promo Card: Many ETBs include a limited promo card