Arbor Elf Combos
Freed from the Real + Arbor Elf + Grafted Growth
Ashaya, Soul of the Wild + Arbor Elf + Illusionist's Bracers
Ashaya, Soul of the Wild + Arbor Elf + Mesmeric Orb
Ashaya, Soul of the Wild + Darksteel Garrison + Arbor Elf
Ashaya, Soul of the Wild + Kiki-Jiki, Mirror Breaker + Arbor Elf
Elvish Guidance + Arbor Elf + Staff of Domination
Combo result
Infinite green mana. Infinite lifegain. Infinite lifegain triggers. Infinite card draw. Infinite draw triggers.
Prerequisites
All permanents on the battlefield. Elvish Guidance attached to a Forest you control. Arbor Elf does not have summoning sickness. You control at least four Elves.