I have definitely in the past cracked a Fetch at my opponents end step out of instinct, only to then draw a Fatal Push and not be able to kill my opponents creature as I wasted my Fetchland
Abilities that trigger when a creature attacks, blocks, or is blocked will trigger during each combat that turn
Also, if you are flush with bounce spells for the Pact, you can use one to return a troublesome permanent of your opponents with the trigger on the stack so as to make them discard it to the Mind Rot mode
Murders at Karlov Manor gave us a Clue commander in the form of Morska, Undersea Sleuth, with a back-up option of Sophia, Dogged Detective
When selecting lands, consider the following: Aim for a land count that supports your deck's curve, typically around 3638 lands , adjusting based on your deck's mana requirements and ramp options
Since the copy also has the duplication effect, this can quickly turn into a situation where you get four or eight new Equipment each turn