If you needed the body, or just happen to have enough mana, then you could cast these somewhat over-costed creatures the normal way, and still benefit from that desirable ETB
On the one hand, I really want to play this card with Torrential Gearhulk as it feels like the cheapest high-impact draw spell that we have access to right now
1 Witch's Oven
While it has low power and toughness for its mana cost, controlling even one other giant immediately makes it worth its 7 mana
When determining the first letter of a name, ignore all spaces and punctuation, including blank lines
His second ability is particularly interesting and very much similar to Chandra's, except you can cast only dragons with it, which isn't a bad deal at all in an all-dragons deck