Its all about continuing to deal combat damage even through blockers
Summons, while present in most FINAL FANTASY games, get a lot more attention in the story of FINAL FANTASY X as you follow Yuna's path as a summoner
A big beater for control strategies that also nips cards from graveyards that it turns into food, it has all the elements you want as a one-of in a deck that plays these colors
Legendary creatures like Alaundo the Seer, Kumena, Tyrant of Orazca, and Vorel of the Hull CladeVorel of the Hull Clade all benefit from the untap ability, making the Liege a powerful inclusion in most decks focusing on Simic colors and synergies
Also, by directly interacting with the Graveyard, it also can be a great style of deck to make yourself more familiar with the intricacies of Magic that go beyond simply draw card, play card style of play