sting mtg card Pinchy McStingbutt (MB2) #552 Equipped creature has first strike as long as its blocking or blocked by a Goblin or Orc. Vraska, Betrayal's Sting – MTG

It gets around indestructible, and can be scaled to your needs

You can see how this excellent card-drawing artifact gets out of hand basically immediately

Otherwise, put a +1/+1 counter on a creature you control

Look no further than Zendikar Rising for some lovely upgrades such as Glasspool Mimic, Nighthawk Scavenger, Thieving Skydiver and Zareth San, the Trickster

For example, when cast on your opponent's upkeep, tapping 2 permanents is far stronger in 1v1 compared to EDH

Similarly, if the target creature or planeswalker is an illegal target by the time the ability tries to resolve, the ability won't resolve and you won't gain 4 life