A Temur-based Elemental Dinosaur, Kalamax encourages its controller to build a deck heavily around instants, as whenever its controller casts their first instant spell each turn, if Kalamax is tapped, they get to copy that spell and choose new targets for that copy
In games where you dont have enough lands or the right colors to cast them, they fix that problem
Then, once you hit 25 or more life, Angel of Vitality gets a bonus +2/+2, turning her into a 4/4 with flying, which can take down your opponent in just a few short turns
2: Create a token that's a copy of target artifact or creature you control, except it's an artifact in addition to its other types
Everyone underrated this card the first time around, in Theros block