Cloud, Tidus, Terra, and Y'shtola will each lead their own 100-card precon decks, as designers for the set sought to focus on fan favorites while also prioritizing characters that most flavorfully integrate Magic: The Gathering mechanics
All four have the ability to net card advantage, so the spell gives you card advantage easily
Both Tidus, Yuna's Guardian and Yuna, Grand Summoner play around with +1/+1 counters, but both are templated in a way that works with any kind of counter
I will sometimes encourage them to draw cards early by leaving their Hiram Flaversham - Toymaker on board, even when I have the tools to remove it
Tons of new Magic cards to get excited about though, with these being my personal favorites: Espers to Magicite: Instant-speed mass graveyard hate that lets you steal the abilities of a creature exiled with it