(Other than, well, losing all abilities, of course.) This is a rule change that happened as Final Fantasy was released
One could, in theory, utilize Ad Nauseam to simply draw some cards, but let's not kid ourselves
[Description] I am listing my collection of Pokmon cards that I actually played with at the time
While it can be argued that a card like Eternal Witness will often work better in some decks than Snapcaster Mage, you cant use that card to give something like Mana Drain flashback at instant speed to stop a key threat and keep you in the game
This can essentially turn into a one mana spell that lets you draw three cards
If you want to see an example of how to build for Terra, Herald of Hope, Jonathan Zucchetti did a great deck tech focused around the modular mechanic, which you can check out here