Can you stack multiple triggered abilities from the same permanent in the order you choose?

When multiple triggered abilities trigger at the same time, they don't all go on the stack simultaneously — they are placed on the stack one at a time. If you control all of the triggered abilities, you choose the order in which they are placed on the stack (CR 603.3b). Since the stack is last-in, first-out, the ability you place on the stack last will resolve first.

This applies whether the triggers come from the same permanent or different permanents you control. If some triggers belong to your opponent, the active player (the player whose turn it is) orders their triggers first, then each other player in turn order orders theirs (CR 603.3b).

It's important to note that you only choose the order at the moment they are put on the stack. Once they are on the stack, players receive priority and may respond normally before each one resolves, so the final outcome can still be affected by spells or abilities cast in response.

Example: You control a Corpse Knight and cast a second creature, triggering Corpse Knight's ability twice simultaneously. You choose to put the first trigger on the stack, then the second on top of it. The second trigger resolves first, then the first — but since they're identical here, order doesn't matter. If they were different abilities with different effects, ordering would be strategically important.