However, some interactions lead to such a fundamental breakdown of the game engine that we would consider the game to be degenerate
Like past Secret Lairs featuring non-MTG properties - an imprint the publisher calls Universes Beyond - these cards are not tournament legal but could be used in the Commander format if your table is okay with you placing a horde of winged figurines on the battlefield
Back corners look clean with possibly very minor edge wear on one or two corners, not prominently visible at this resolution
It doesn't matter which mode you choose or which additional costs you pay, including any additional costs imposed by other effects
For example, let's say you play all of your spells on curve, but your opponent plays nothing on turn one, a two-mana spell on turn two, a two-mana spell on turn three, a two-mana spell on turn four, and so on