Blue can transform creatures
If we're talking about a creature card, this is where you'll find out what kind of creature you're dealing with (Goblin, Dragon, etc), for example
First, the Call of Legends version was a holo reprint of the HeartGold & SoulSilver Energy cardand twice the price
Experiment One is arguably more powerful than our random Savannah Lions because it will often end up a 3/3, and Mayor of Avabruck gives us another backup Thalia's Lieutenant, but unlike Honor of the Pure (which we'd have to drop to splash a second color), it actually comes with a body
Charmeleon is a versatile card that cannot be damaged by attacks or the effects of attacks that would damage it while it is on the bench, which means that it is often safe from harm to be evolved into Charizard ex on the following turn