This is my idea for the direction to take the old amulet bloom deck to maintain viability. Constructive advice is welcome Needs a lot of testing and iteration as this is a deck with a lot of choices regarding lands.
Primeval Titan: same as original deck
Reality Smasher: additional beater, due to slower nature hivemind is too inconsistent for mainboard, forces two for ones.
Matter Reshaper: essentially explore on a body.
Crumbling Vestige: comparable to bouncelands, esentially come in untapped if you have something to play even without amulet
The Lands:Originally this deck used bouncelands, amulet, and summer bloom to gain a lot of temporary mana and push out and early titan or hivemind. Without the consistancy of getting cards like hivemind early the combo works less well as it is more easily countered or even just payed for. Instead the bouncelands in this deck are mainly to reuse the abilities of other lands.
Cavern of Souls: Uncounterable Creatures, primarily titans, if another colorless source is had then you can even use it on eldrazi
Crumbling Vestige: Essentially bounce lands without bouncing. with no amulets produce mana anyway which means they can be good to fetch off titan.
Gemstone Mine: Color Fixing
Ghost Quarter: For getting rid of pesky lands the opponent has or getting a green source if opp casts blood moon
Khalni Garden: Mainly for Lili.
Lumbering Falls: For the removal heavy matchup (may change after testing, on trial)
Mana Confluence: Color Fixing
Mortuary Mire: Can get back titans, is a black source for Slaughter Pact, can enable long game
Radiant Fountain: Gain life against burn
Slayer's Stronghold: Both Haste and Vigilance means it can be used on titans to get mroe lands or to leave a big creature as a blocker
Sunhome, fortress of the Legion: 8 Trample creatures to give doublestrike
Tendo, Ice Bridge: Color fixing and enables eldrazi
Tolraria West: Gets pact, which gets titan, which gets another tolraria West
Vesuva: copy utility lands.