Other new mechanics specific to this set, Tiered spells and Job Select, are also fun and well represent Final Fantasy, but from a Magic perspective, they are similar to previous existing mechanics
Its an over-statted 3-drop, a strong 5-drop, and a threat that needs an answer so you dont win the game
The idea of pyromancy, hurling flame like you'd found the right flower in the Mushroom Kingdom, is so alluring that one of the game's first Planeswalkers (Chandra Nalaar) was designed as an embodiment of the concept
Here's how you break Greven to get a faster kill, with help from a combo that dominated Vintage years ago
While this may seem a detrimental effect, cards like the titular Iago or Giant Cobra - Ghostly Serpent have great stats for their cost, making them very powerful in terms of controlling the board