Toughness and durability are tough to come by for most arcane practitioners, but a toad familiar can close the gap.

Speed 3Constant Benefits* You gain a +2 bonus to Endurance checks.
* You gain a +2 bonus to your healing surge value.
Active BenefitsToad’s Healing: Once per encounter, when an ally adjacent to the toad spends a healing surge, that ally regains 1d8 extra hit points.

Published in Dragon Magazine 374, page(s) 27.