Its effect, letting a player live beyond zero life by building up poison counters, is also original and widely liked
Despite this, we were treated to one of the most powerful mana ramping abilities ever to grace the game
In almost any matchup, the W/R Prison deck will be able to cut the dead cards and bring in a bevy of brutal hate cards, furthering its plan of play a card that slows my opponents strategy down and then resolve and win with a planeswalker. Because the deck doesnt use its graveyard, play any artifacts, play any creatures, or play any spells that cost one mana, and it has room for a bunch of basic lands, it can do this
Its not confirmed if this system will be in place for Paradise Dragona, but its likely
Blue is the most common control color (and the color of permission spells), but not all control decks are blue
This is a low tier removal spell, but red is flush with options, so thats solid design