[HELP] DK Tank SIMPLE

Hey guys,

I`m having trouble finding a macro to use with my DK Blood.
Usually, I grab the macros that I find here and change them by myself… but for some reason, nothing is working;

Is there any good soul here to create a macro for me that:

Use Death Strike (Prioritize this if I have resources)
Use Pestilence
Use Blood Boil

Use Rune Strike (It’s out of GCD)

Thank you!