Hmm, it's not only a castsequence. After asking some ppl, they told me it's a "lazymacro".
Something like this, not sure if it works though:
/castsequence reset=0.3 0,0,0,0,0,Execution Sentence
/castsequence reset=0.3 0,0,0,0,sacred shield
/castsequence reset=0.3 0,0,0,Hammer of Wrath
/castsequence reset=0.3 0,0,Shield of the Righteous
/castsequence reset=0.3 0,Avenger’s Shield
/castsequence reset=9 judgment, hammer of the righteous, holy wrath, consecration, hammer of the righteous
I tried to work around it for a bit but I've no clue what all those 0's are doing (other macros have 1 or 2 instead of 0).