It feels amazing to have them both on the board, but Tatyova's triggered draw ability is mandatory , so it has the drawback of causing you to lose by decking yourself if you go infinite
Especially with Plasma still an utterly great stun-locker ( seriously, Turn 2 issues my a$$ ) and also allows you to possibly run in Allure if needed-after all, you'll recoup the cost and more, especially if you manage to finish on Dystopia, Plasma, Anki, Dian or that new spicy Evil HERO Fusion
Gishaths stats and combat abilities are more than respectable, and the ability to turn damage into impulsing for Dinosaurs more or less gaurentees that youll get card advantage one way or the other
Valeron Wardens does scale very well with lots of things, obviously more renown dorks, removal, things that provide evasion