While I wont be listing them here, they havent exactly become forbidden knowledge
Follow the leader: How to build MTG Commander decks Flexibility is an oft-underrated attribute in Magic
The win condition aspect is a little clunky, but the ability to trade two mana for a card carries this artifact and proves its importance in creature-based white decks
Zamriel, Seraph of Steel Zamriel, Seraph of Steel is a legendary angel that gives all your equipped creatures indestructible, including itself
Elspeths Nightmare Elspeth's Nightmare is good early game removal since it can also help you avoid a threat in a players hand, and then exile it the following turn
Just the first line, "The 'Legend Rule' doesn't apply Slivers you control." is a shock to read