With them we can draw more cards per turn (by default, it is one at the beginning of each turn), switch between active and benched Pokemon, heal our creatures' HP, and so on
The card doesnt feel very exciting, honestly
Filling your graveyard up to seven cards seems like an easy feat, especially with Surveil lands and Restless Reef
There are plenty of cards that can either benefit a token-heavy or food-centric strategy, so replacing almost anything is possible, even if it lowers the strength of your deck slightly
Menace Desmond Miles gets +1/+0 for each other Assassin you control and each Assassin card in your graveyard
Landfall - Whenever a land you control enters, another target creature you control gets +2/+2 and gains trample until end of turn