Survival abilities only trigger during your second main phase
All five have value, and I've killed with the Necropolis, saved a key creature with the Hollow, combo'ed off with the Island, won with the card quality of the Stronghold and saved my life long enough to win with the Haven
This deck is very similar to the Colorless Eldrazi deck from Pro Tour Oath of the Gatewatch because it just tries to play all of the powerful Eldrazi creatures, including Matter Reshaper, Thought-Knot Seer, Reality Smasher, and Endbringer
A note about Fight in MTG In summary, fight is keyword action that forces two creatures to damage each other equal to their power
If an effect causes a player to skip their untap step, the phasing event simply doesnt occur that turn
That's what Spike is all about