If his deck is full of cheap removal, then the chance to try and get in damage after you've cleared that Sable off means it's probably right to hold back, whereas if his deck is full of 3/2s then you'd want to lean toward trading off
For example, if Bottomless Pool // Locker Room is on the battlefield with both doors unlocked, its names are Bottomless Pool and Locker Room, its mana value is 6, it's a Room Enchantment, and it has the abilities in each door's text box
The Aetherdrift Eternal Might Commander Deck includes 1 deck of 100 Magic cards (98 nonfoil cards and 2 Traditional Foil Borderless Legendary cards), a 2-card Collector Booster Sample Pack (contains 1 Traditional Foil or nonfoil alt-border card of rarity Rare or higher and 1 Traditional Foil Uncommon card), 10 double-sided tokens, 1 deck box (can hold 100 sleeved cards), 1 strategy insert, and 1 reference card
This connive deck features reanimation and discard matters themes
One thing to establish early: For all that theres a million styles and subsets, theres no serialized cards in these boosters