After all, why tap a land for 2 mana when you can play a card like Frantic Search and effectively tap it for 3, or use a Snapcaster Mage to just have your Islands tap for 3 mana outright before using a Time Spiral to refill your hand and untap your lands
These decks are extreme themes
Now, we move to that card's replacement, Pokmon LV.X, which was introduced at the top of the Diamond & Pearl era
Fractured Identity is significantly better than Treachery or anything like that as it is so much safer
Practice, Practice, Practice One of the things I would do when making the challenges for CCC is to make 5-7 cards per prompt, preferably one per color and a colorless where applicable
#2: Birthing Ritual This is less controllable than Birthing Pod, but thats not a bad thing