At the beginning of your upkeep, if there are five colors among permanents you control, there are six or more card types among permanents you control and/or cards in your graveyard, and your life total is greater than or equal to your starting life total, you win the game
But, with its sheer efficiency, it almost becomes an obligatory addition to any dragon deck currently playable on all formats
It gives you an alternate cost you can pay to cast that card from your graveyard
Control decks love this card, and players often upgrade to reverse holos
7 Thassa, Deep-Dwelling Blink In Blue One of the better Theros gods to come from Theroes Beyond Death, Thassa Deep-Dwelling comes with a consistent ability that might not be catered to removing finality counters but does a fantastic job at doing so
A typical mana curve for Sealed looks something like this: 1 Mana: 12 cards 2 Mana: 78 cards 3 Mana: 56 cards 4 Mana: 34 cards 5 Mana: 23 cards 6 Mana: 01 card and 17 lands