Even better, you get to pick one of those cards to add an additional two mana tax to cast it or activate abilities from it
This rare promo was distributed in tandem with Journey Together and was used to help build hype for the return of Pokemon and trainer duos in the set
Heres the thing: rarity alone doesnt determine price
Alternatively you could end up putting exactly what you need right into your graveyard
It's very strong at any kitchen table format, and then quite the fun thang in Commander despite its two-color identity in one of the least played two color combos
Cards like Sun Titan are ideal for this plan, as you can use them to accrue significant value over time through creatures like Eternal Witness, Loyal Retainers, and Wood Elves, fetchlands like Bloodstained Mire, or even previously destroyed mana rocks, so having a big creature or two that can fill this role is very helpful when possible