Pemmin's Aura is exactly that, combining with creatures that generate more than one colored mana to produce infinite resources to cast your spells: You'll see it in Commander decks like Zaxara, the Exemplary, who forms a nice two-card combo with it to help power out various monstrous X spells, and Kinnan, Bonder Prodigy, who helps you go infinite with any old Birds of Paradise
, they might take a backseat for now as players figure out what to do to replace the loss of consistency
add 1 Level 4 or higher "Vampire" monster from your Deck to your hand, and if you do, send 1 Level 2 or lower "Vampire" monster from your Deck to the GY
Madeline had a heart for homeless animals, especially the feral cats living in city drains
These cards have the potential to be extremely in-demand deck additions, and not just cool artwork (though they definitely have that too)