This means that Kida, Royal Warrior can provide some much needed defence early on to protect those cheap and weak characters with useful abilities: such as steels own Razoul, Palace Guard - which has plus two willpower when undamaged - or emeralds Morph, Space Goo or sapphires Scrooge McDuck, Uncle Moneybags
Knight of the White Orchid also gives you the ability to drop an extra land when it comes into play , as long as you're already behind on land
Pollywog ProdigyPollywog Prodigy and Esper SentinelEsper Sentinel become much stronger card draw engines when their power is buffed over five or so since most spells will trigger for Pollywog ProdigyPollywog Prodigy, and players wont want to pay 5+ mana to prevent one player from drawing a card most of the time
Then the Vampire was printed next, same cost, this time it adds flying and +1 toughness, but it just works once per turn so it's both better then Mentor (flying, bigger size, no mana needed) and worse (just once per turn)
Floodborn characters born from the game fictional concept of a "cataclysmic ink flood": an event unleashed when a forbidden book was opened, changing heroes and villains alike into more powerful forms, though many magical "pieces of lore" were lost in the ink flood as well
Look out for cards like Fidget, Sneaky Bat and Queen of Hearts, Unpredictable Bully for strategic value