Its worth noting that proliferate effects increase your token production
Rather than paying five mana, you can exile a Blue card from your hand and pay one life instead
For example, Greater Basilisk's deathtouch ability will likely convince an opponent to avoid blocking even if they possess a creature with greater power and toughness than Greater Basilisk because even a single point of damage would mean their creature's death
The best Rise of the Floodborn cards look to build on the strong foundation laid by The First Chapter, adding some more advanced gameplay effects, keywords and expanded options for those building their next Lorcana deck - or simply after more Disney characters to add to their collection
Proliferating twice is very flexible, so you can go with blue creatures that have +1/+1 counters, planeswalkers, or artifacts with charge counters
Weve got Precon Upgrade Guides for each deck, with a review of how the decks play and feel