Clive's Hideaway's last ability only cares if you control four or more legendary creatures at the time it resolves
Rikku, Resourceful Guardian allows you to force a creature through your opponents' blockers, as well as steal counters, and Lulu, Stern Guardian protects you by putting stun counters on your opponents creatures, as well as proliferating to keep them around
Thats sort of a weird one to me because I thought the rules were that you need to wait for the ink to dry before you can do anything with characters
Just keep it protected from invading forces with a card sleeve
However, just because people find a game particularly attractive or compelling, doesnt mean that theyll have the confidence to buy into the system
Chances are if you built a deck with 16 creatures and 14 of them were creature Sagas, you'd never have enough on the battlefield at once to profitably attack consistently