The benchmark these days seems to be Read the Bones, which is quite strong, seeing plenty of Standard play
Miracle (You may cast this card for its miracle cost when you draw it if it's the first card you drew this turn.) Creature - Human Warrior Zephyrim Squad (As an additional cost to cast this spell, you may pay any number of times
What does Event: Bebop's Rampage do
This decklist has only artifact lands, so thanks to the affinity mechanic, every artifact land generates effectively 2 mana for these spells
If you're looking to upgrade this list, it'll be a lot of fun to add in all kinds of artifacts that have interesting enters effects
For example, Quantum RiddlerQuantum Riddler is a five-mana creature, but it can also be a two-mana one if you need to dig one card deeper or you meet the condition to refill your hand