To recap, an anthem needs to be a permanent, it needs to affect any creature that could end up on your side of the board, and it needs to increase power and/or toughness, without decreasing either
Additionally, enchanted creatures with auras you control can't attack you, making it weird for your opponents
You can look up whats currently in Standard at Warnings Under no condition should you sell Magic cards without looking up what theyre worth
Pokemon cards have been around ever since the franchise became an international hit
Tucking Living Death or another enabler under this is going to feel downright criminal, which is right in theme for the set
This is the kind of card you want on turn one every single game, so as to allow you to cast literal Rampant Growth on turn two