Coat of Arms Combos
Scurry Oak + Coat of Arms
Devoted Druid + Presence of Gond + Coat of Arms
Omarthis, Ghostfire Initiate + Helm of the Host + Coat of Arms
Omarthis, Ghostfire Initiate + Mirage Mirror + Coat of Arms
Skithiryx, the Blight Dragon + Warstorm Surge + Coat of Arms
Splinter Twin + Barrenton Medic + Coat of Arms
Splinter Twin + Cinderhaze Wretch + Coat of Arms
Splinter Twin + Devoted Druid + Coat of Arms
Combo result
Infinite creature tokens with haste. Infinitely large Elves and Druids you control until end of turn. Infinite green mana. Infinite ETB.
Prerequisites
All permanents on the battlefield. Splinter Twin and Nurturing Presence attached to Devoted Druid. Devoted Druid does not have summoning sickness.