Even if Satoru leaves the battlefield before it resolves, you'll still be able to put the creature onto the battlefield tapped and attacking
The ward bonus is nice, but this enchants a somewhat susceptible card type, so Id be a little weary
While Necrodominance is on the battlefield under your control, abilities that trigger whenever a permanent you own is put into your graveyard from the battlefield (for example, "When this creature dies") won't trigger because cards and tokens are never put into your graveyard
It can also be used to increase Support in a combo deck
[20] On each player's turn, following a set phase order, they draw a card, tap their lands and other permanents as necessary to gain mana to cast spells, engage their creatures in a single attack round against their opponent who may use their own creatures to block the attack, and then complete other actions with any remaining mana
Overall good appearance with minor flaws