In game terms, Elsa has an Ink cost of 8, a Strength value of 4, 6 Willpower and 3 points of Lore
I also consider noncreature cards whenever they fit
Mischievous Mystic Mischievous Mystic is a strong creature that snowballs with a bit of card draw and starts with an aggressive flying rate to begin with
The Yuna + Tidus cards are superb, depicting some of the most memorable moments from Final Fantasy history (Inspiring Call, Yuna's Decision, Together Forever, Farewell, Yuna's Whistle)
These cards stick out for a couple of reasons starting with the fact that theyre oriented horizontally (in landscape, if you will) rather than vertically
Though Planeswalkers can be confusing for new players, Kaito is a pretty simple one overall