Thats a very handy ability to have, considering how many strong cards there are in Ruby that can help you achieve that aim
When it comes to characters, one thing to keep in mind is that the 4 card rule will also apply to Enchanted variants in Disney Lorcana
Sisu meanwhile has a card draw ability whenever she quests, with the player able to choose between the top two cards on their deck (and putting the other card into bottom of their deck.) Other notable Sapphire cards include Cogsworth Grandfather Clock, who gives all other characters Resist +1, and Grand Pabbie Oldest and Wisest, who gives players 2 Lore whenever a character is healed
Theres also a ton of mana dorks and ramp, to pay for the transformation cost each turn
Here we have a card that does a pretty impressive ability when played lowering all of your opponents strength stats until your next turn
The stronger habit is to quest with evasive or protected characters and keep your fragile ones back until they are safe