Monks in the D&D: Adventures in the Forgotten Realms sets incentivize you to play two spells in a turn and have some lifegain synergies, so Oji fits this two categories
Except, it can also be Embalmed, and create a token copy of itself
Shinryu's unique effect, Burning Chains, can come in handy in the multiplayer Commander format, though this may cause other players to focus their attacks on Shinryu and its user
It's a small change, but I think it looks very clean, especially when a full box is on display
All told this is not the ideal way to try and fill up your yard despite having some utility there, What it is good for is being an alternative Welder / Tinker target with very high power
When this enchantment has no +1/+1 counters on it, sacrifice it