The Commander format in Magic: The Gathering has players construct decks around key legendary creatures, providing decks with distinct identities and consistency through a constantly available card
Spells that are four mana or less follow this pattern
To double a creature's power and toughness, that creature gets +X/+Y, where X is that creature's power and Y is that creature's toughness when Tifa's Limit Break resolves
Genetic Apex featured three crown cards while Space-Time Smackdown and Triumphant Light only featured one or two, respectively, for example
Just like with all card games, virtual or not, when you're opening card packs, you'll probably end up getting quite a few duplicates over time
Every instance of toxic deals combat damage differently and with the right strategy you can deal massive damage in one attack