You can activate one ability of a planeswalker you control once a turn, but only during a main phase when you would cast a sorcery
First are enchantments that benefit you directly, either through card or mana advantages or by limiting how many creatures can attack you
And in this format, games tend to be on the longer side unless youre playing with or against Mono-Red
The design is super-archaic
Creature - Wizard Horror Color tag templates(None) Guiltfeeder Fear (This creature can't be blocked except by artifact creatures and/or black creatures.) Whenever this creature attacks and isn't blocked, defending player loses 1 life for each card in their graveyard
Eternal Scourge I wouldnt be mentioning Eternal Scourge if Food Chain didnt exist, but Food Chain is certainly a card someone made for some reason, so I feel obligated to bring up the colorless creature that can loop with the enchantment to make infinite mana