It took some time on my part but I think I figured out the Turn 2 kill in today's Titan deck.
Opening hand:
1 x
Forest
or other etb untapped land
2 x
Amulet of Vigor
1 x
Selesnya Sanctuary
or
Simic Growth Chamber
or
Golgari Rot Farm
1 x
Primeval Titan
1 x
Summer Bloom
or
Azusa, Lost but Seeking
Turn 1: Forest, Amulet #1
Turn 2: Amulet #2
Selesnya Sanctuary (regular land drop)
Bounce trigger on the stack targetting itself
Amulet untap triggers on the stack, Let the untap triggers resolve one at a time tapping the sanctuary for mana after each one.




mana floating
Let the bounce trigger resolve
Use


mana to cast Summer Bloom


mana floating
Selesnya Sanctuary (extra land drop #1)
Bounce trigger on the stack targetting itself
Amulet untap triggers on the stack, Let the untap triggers resolve one at a time tapping the sanctuary for mana after each one.






mana floating
Let the bounce trigger resolve
Use






to cast Primeval Titan fetching
Boros Garrison
and
Slayers' Stronghold
Garrison bounce trigger on the stack targetting the forest
amulet untap trigger #1 for garrison on the stack
amulet untap trigger #1 for stronghold on the stack
amulet untap trigger #2 for garrison on the stack
amulet untap trigger #2 for stronghold on the stack
Let the untap trigger #2s resolve and use Garrison to activate Stronghold targetting Titan (8/6 trample, vigilance, haste)
Let the untap trigger #1s resolve and use Garrison to activate Stronghold targetting Titan again (10/6 trample, vigilance, haste)
Let bounce trigger resolve
Attack with Primeval Titan fetching
Vesuva
and
Sunhome, Fortress of the Legion
Vesuva enters as a copy of Boros Garrison
Vesuva/Garrison bounce trigger on the stack targetting itself
amulet untap trigger #1 for sunhome on the stack
amulet untap trigger #2 for sunhome on the stack
amulet untap trigger #1 for vesuva on the stack
amulet untap trigger #2 for vesuva on the stack
Let the vesuva untap triggers resolve one at a time activating vesuva/garrison for mana in between each untap trigger




mana floating
Let the sunhome untap trigger #2 resolve and spend the floating mana to activate sunhome targetting Titan (10/6 trample, vigilance, haste, double strike)
let the last untap trigger resolve
let the bounce trigger resolve
DOME THE OPPONENT FOR 20 DAMAGE!