Meddleprotection$0.13A very close blue answer that changes the target of a spell or ability, often blanking targeted removal much like Diplomatic Escort protects creatures.
Dive Downprotection$0.16Cheap blue protection spell that gives a creature hexproof and a power boost, serving the same defensive role against targeted interaction.
Mizzium Skinprotection$0.14Protects a creature from targeted removal by giving hexproof, and its overload mode can shield a whole board from spot removal.
Spellskiteprotection$11.26A classic defensive tool that redirects targeted spells or abilities away from your key creature, similar to countering targeted effects.
Mother of Runesprotection$8.32Functions as repeatable creature protection by giving a creature protection from a color, often invalidating targeted removal.
Giver of Runesprotection$10.09A newer upgrade to Mother of Runes that repeatedly shields a creature from many targeted spells and blocks, while costing the same amount.
Swan Songprotection$10.41A cheap counterspell that can stop the targeted spells most likely to kill your creature, though it is broader than creature-only protection.
Counterspellprotection$0.98Directly counters the spell before it resolves, which is the simplest functional substitute for preventing targeted removal or other threatening spells.