My mind immediately goes to cards like The Ozolith and Resourceful Defense to start shuffling around counters, not to mention synergy with cards like Elenda, the Dusk Rose and Unruly Mob that grow whenever your creatures die
Great work on it, it set the tone and vastness of the ambitious crossover set
(Choose any number of permanents and/or players, then give each another counter of each kind already there.) Lulu's first ability only cares about creatures attacking you, not planeswalkers you control or battles you protect
Liliana may be hiding an axe behind her back in the art (hence the "chopping" pun on last-minute shopping), but she can be easily bribed with a gift
Legality depends on the tournament format -- Titanic Pelagosaur can be legal in some formats and banned or restricted in others
However, in these cases, value can go down once hype dries up