The character and illustration match Counterspell perfectly, and you can see why this card would be sought after by comic book and MCU fans alike
While this isn't an exact science (since expensive reprints will limit the price of new cards, which might be hurting the Bant deck a bit, since it has the highest-value reprints), this system works pretty well in general
9 The Islands I Pulled From The Sea 216/204, Ruby The first song card on this list, the Uncommon card The Islands I Pulled From The Sea will let a character that costs three or more sing
The only white creature that seemed interesting was Bishop of Rebirth, which isnt all that Vampire-centric
Ashaya, Soul of the Wild enables landfall by turning all your nontoken creatures into lands
All of these are very much versions you can find easily, and for very cheap if your deck wants a Phyrexian Arena