Many mutate creatures take advantage of this, with abilities that trigger "each time this creature mutates", and you can collect a pile of different mutate triggers in one body
For many longtime fans, the real thrill of it all comes from collecting Pokmon cards
Valakut Exploration can be mixed in with ramp cards to get multiple cards exile, and potentially enough cards to win the game with its burn effect
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Even in this version, I can already feel the addiction kicking back in, which is a good sign for the game, but troubling for me
Many cards like The Watcher in the Water use stun counters as a downside, so you can turn that into cards