Twinflame Tyrant Far Fortune, End Boss Ojer Axonil, Deepest Might / Temple of Power Imodane, the Pyrohammer Solphim, Mayhem Dominus And there are some other good options in mono-red likeNeheb, the Eternal and Toralf, God of Fury / Toralf's Hammer as well as nice cards that add a color, like Tor Wauki the Younger, Firesong and Sunspeaker, and Ghyrson Starn, Kelermorph
Sagas get their first lore counter when entering
This even means you can also use Kenrith to manipulate your opponents into taking each other out
Destroying them in combat is still possible, though
(A suspected creature has menace and can't block.) Whenever a creature you control with menace attacks, create a Treasure token
What colors is each type most present in