Instead of a massive micro managing hero, he would be like an easy swarming champion. You would still only control one champion, the clones will just follow your actions:
Passive: Meepoo has 4 clones of him that will follow and do whatever the real Meepoo does. Their stats are equal to the real Meepoo's stats and will get all bonuses that the real Meepoo gets. If Meepoo or one of his clones dies, all of them dies.
Q: Meepoo and his clones gain a movement speed bonus for 5 seconds. During this time, Meepoo and his clones' auto attacks will also slow the target's movement speed.
W: Meepoo and his clones will release a burst of energy around them, damaging nearby enemies. Each consecutive hit on the same target will have its damage reduced.
E: Meepoo will raise a shield around him and his clones for 5 seconds, gaining armor and magic resist while the shield is active.
R: For 10 seconds, if one of Meepoo's clones dies, Meepoo and the others won't die. If the real Meepoo dies, a clone will be killed instead and Meepoo's health will be fully healed. After the duration is over, if Meepoo or any of his clones are dead, they will all die.