Without further preamble I shall start to present the list, starting at the bottom, complete with a discussion about the cards performance within the cube
Ultimately, it can propagate the idea that proxies are okay, and when that idea spreads through playgroups
This makes it the best discard spell since discard spells got fair, and even if your opponent manages to empty his hand you can still use it on yourself to gain 6 life off of useless land cards
As that triggered ability resolves, you'll sacrifice the Plan and unlock your ultimate reward
All other rules and effects that check power or toughness use the real values, even if they cause damage "equal to a creature's power" to be dealt
Yshtola Rhul is a complex card, and youd be forgiven for missing the fact that she herself gives you two blinks for six mana because of her extra end-step ability