Activate Manascape Refractor using Faceless Haven's second ability by paying {S}{S}{S}, causing Manascape Refractor to become a 4/3 creature with all creature types until end of turn.
Activate Manascape Refractor using Griffin Canyon's second ability by tapping it, untapping Manascape Refractor and giving it +1/+1 until end of turn.
Repeat step 2.

Infinitely large Manascape Refractor until end of turn

Manascape Refractor

Griffin Canyon

Faceless Haven

Activate Mirran Safehouse using Faceless Haven's second ability by paying {S}{S}{S}, causing Mirran Safehouse to become a 4/3 creature with all creature types until end of turn.
Activate Mirran Safehouse using Griffin Canyon's second ability by tapping it, untapping Mirran Safehouse and giving it +1/+1 until end of turn.
Repeat step 2.

Combos with "Faceless Haven"