Within one gcd, an unbuffed, no-consume seal stacking paladin has a 99% of critting you at least once or more, ~60-70% chance of critting at least two or more times, and a 15-20% of critting you at least three or more times within one gcd.
This is with me assuming gear from real vendor + the Soul of Templar shoulder enchant and fanaticism rune, and no seal of command proc (40-46% chance) .
All they have to do is cc you and press judgement and crusader strike with seals up and 7-8 hits occur with a 60% chance at least two or more of those abilities crits. That’s a bit overtuned in my opinion.