Just print counterspell, mana leak, swords to plowshare, etc. in standard. The cancel variations and the miscalculation variants are too weak, especially given how hard creatures have been powercrept.

These things were perfectly balanced with much weaker creatures so either they will be perfectly fine in newer expansions. Or they are too weak and hence stronger versions should be printed to balance out the fact that creatures are way more powerful than they were in 2003.