You can only use this effect of "Altergeist Protocol" once per turn
Most removal is cheap and so it is pretty easy to ensure this lives a while after playing it
Creature Akroma, Vision of Ixidor Flying, first strike, vigilance, trample At the beginning of each combat, until end of turn, each other creature you control gets +1/+1 if it has flying, +1/+1 if it has first strike, and so on for double strike, deathtouch, haste, hexproof, indestructible, lifelink, menace, protection, reach, trample, vigilance, and partner
Watermark: Set Symbol Illustrated by Daarken Standard Not Legal Alchemy Not Legal Pioneer Legal Historic Legal Modern Legal Brawl Legal Legacy Legal Comp
Structure : Play as many games as you wish, resign when you're done
And there's also the foil Shattered Glass version, which is extremely rare