Ayli, Eternal Pilgrim firmly forces that Venn diagram into a circle with a combination of lifegain and interaction that gives you plenty of chances to sacrifice other creatures for varying amounts of mana
As a result, cards like Maskwood Nexus can be super effective, making it quite difficult for your opponents to remove your enormous threats without things cascading out of control
If it has an ability that triggers when it exploits a creature (or, in this case, when any creature you control exploits a creature), that ability will trigger
it gains 500 ATK, also the first time that target would be destroyed by battle or card effect this turn, it is not destroyed
Your creatures are going to be exceedingly hard to remove permanently, and when they do come back, theyll bring friends
You can play as many or as few as you want