Given Magics history with double-faced and split cards, having the option to play a card for one side or the other feels like a natural expansion
Scion of Halaster Reanimator Can one be a Cultist of Tiamat and a Scion of Halaster at the same time
If you don't have any other artifacts in play you want to bounce back to your hand, you can always choose to bounce itself since it is an artifact creature
For example, my understanding is that you can add counters with the Proliferate mechanic
Celebrate your crossover adventures with exclusive items, including a foil promo card and an oversized D20
Then, on top of that, add light support, in the sense that it takes few card slots, that works for any tribes