My main gripes with Prismari Artistry are that the mana base feels a little high, likely to make the most of Rootha's ability, so I've found myself almost downgrading the deck with some cheaper spells to stay relevant in the game during earlier turns
Rather, I'll only talk about this year and, specifically, about the new keywords and mechanics printed on Magic cards this year
A 4/5 trampling body is much much better than a 5/3, it might well still be better than a 5/3 and a 3/3 token too
If you don't have a creature to spare, don't worry: Kaldra Compleat is a living weapon, so it makes a 0/0 token to attach to when it comes into play
Foundations boosters feature 10 Special Guest cards, which are: Condemn Sphinx's Tutelage Grim Tutor Embercleave Goblin Bushwhacker Bloom Tender Paradise Druid Akroma's Memorial Temporal Manipulation Fiend Artisan Some cards in Foundations received a borderless treatment (70) or an extended art (41) treatment