Snapdax, Apex of the Hunt

1G: You may return another creature you control to its owner's hand. If you do, this creature gains indestructible until end of turn.

Commander ninjutsu UB (UB, Return an unblocked attacker you control to hand: Put this card onto the battlefield from your hand or the command zone tapped and attacking.) Whenever a Ninja you control deals combat damage to a player, reveal the top card of your library and put that card into your hand. Each opponent loses life equal to that card's mana value.

As this artifact enters, choose a creature type. Creature spells you cast of the chosen type cost 1 less to cast. At the beginning of your upkeep, look at the top card of your library. If it's a creature card of the chosen type, you may reveal it and put it into your hand.