A lot of these hit really close to home, and it was only after Id been collecting these that I saw that most of these are jokes about players, not the game
I first built a Zombie deck years ago with a pile of graveyard synergies and token makers, and it quickly became the deck I reached for most often
Once we enchant Niv with any of these we just cast any instant/sorcery to trigger a near-infinite damage + card draw loop to burn out the table
In an artifact-heavy deck, that's an obscene amount of mana and card advantage every single turn
While the two first modes speak for themselves and would already constitute a strong magic card, the last mode is more format dependent and as it stands, it is a very effective ability in the current Modern metagame
And how effective would a 10-turn Doom clock even be in an average MTG game