Higure is a five-mana 3/4 that reads, Whenever Higure, the Still Wind deals combat damage to a player, you may search your library for a Ninja card, reveal it, put it into your hand, then shuffle. Thats not all though, you can also pay two mana to make a ninja you control unblockable, which is absolutely absurd
The nice thing is that with the Heave Together Now ability, once you move one character to the RLS Legacy, all your other characters cost just one ink to move there
What are your opinions of Magic Origins
Similarly, Toxic Deluge is widely used in Commander as an effective boardwipe since this format is reliant on boardwipes to keep complex board states under control
I'll touch on a few of my favorites