There are some cards, like Fabled Passage and Woe Strider, that people might assume are automatic four-ofs but that isnt the case
Patriarchs Bidding Patriarch's Bidding is a 5-mana sorcery that has each player choose a creature type, then everything of a chosen type in a graveyard returns to play
However, its real strength lies in its ability
If you have something that makes you lose life every turn, you are getting Energy every turn
Kumano Faces Kakkazan is a one-mana Red saga that deals one damage to each opponent and their planeswalkers the turn you play it, allows a creature you cast to enter the battlefield with an extra +1/+1 counter on the turn after, and then transforms on turn three
And dont even get me started on Myr Battlesphere