To be fair. Cancel was never meant to be the reference of counterspell power level (or at least not the upper bound).
Contain is a follow-up to an earlier (inferior) design of mine Ley Execution answering the question: What if Disallow could counter both the eldrazi titan and its triggered ability at the same time?
Source
Disallow did come as a surprise since it's so much better than Cancel.
To be fair. Cancel was never meant to be the reference of counterspell power level (or at least not the upper bound).
Contain is a follow-up to an earlier (inferior) design of mine Ley Execution answering the question: What if Disallow could counter both the eldrazi titan and its triggered ability at the same time?
Hmm, I think Summary Dismissal is the answer to that (as well).
Indeed. It is. Well, mine is uncommon. :)