Yusri, Fortune's Flame, Zndrsplt, Eye of Wisdom and Okaun, Eye of Chaos partners, Krark, the Thumbless and Sakashima of a Thousand Faces partners, and Rakdos, the Showstopper are some of the most effective ones
Windborn Muse is a budget card that makes it more difficult for an opponent to attack you and take the monarch from you, while cards like Kardur, Doomscourge push opponents to attack each other rather than you
You can set up an account easily enough for your kids, but if they are under 14, you will need to set up your own account as well
It's like realizing that you only need one weirdly-shaped Lego block left to complete your absolutely massive build and relentless scouring everywhere you can to finally get hold of it and finish that build
Show being a blue card just makes it much better