Simic Saboteur

Flying
{2}{u}{g}: Until the beginning of the next end step, target creature loses wither, infect, and deathtouch and deals combat damage to creatures in the form of +1/+1 counters.
"The compound secreted by Subject Thirty-Seven has proven to be an instant cure for all known poisons and diseases. But we can do better. Orlo, bring in Subject Thirty-Eight!" -Eveen, Master Splicer