Most people who own a playset of Lilianas arent going to sell their copies theyre going to shrug, assume that the card will be useful again in the future, and stick them in a box until that day comes
Meanwhile, Territorial Kavus ability to rummage cards away when it attacks means that you can discard excess copies of Leyline you may have drawn and convert them into more impactful spells
I get that your deck is trying to be fairly nimble, with lots of lower to the ground ramp, but I feel like with a 7 mana Commander that does this much you really want her out as quickly and consistently as possible
Meren made an impact on the format immediately, with a lot of valid hype
Flanking means "Whenever a creature without flanking blocks this creature, the blocking creature gets -1/-1 until end of turn." If a creature gains flanking during combat, that has no effect on any creature already blocking it