mtg final fantasy best selling set Wizards of The Coast Magic: The Gathering Collector Booster Box (12 Packs) D38440000 card decks Final Fantasy is the Best-Selling

Of course things change

If some of the attacking creatures leave the battlefield while Mangara's triggered ability is on the stack, use the player or planeswalker they were attacking before they left to determine whether you draw a card

Its even worth stretching your mana for or risking this sitting in hand for a while, but the triple-blue mana cost is intense enough that you do have to do some work to get there

In exchange, however, you do get an awful lot of value

Meanwhile, those Steel cards in the deck are doing what Steel cards do best: They're taking up space on the battlefield with powerful attack and defense, while boosting each other