Lifetap

Or another very effective card is the Lifetap, which is an Enchantment...

Early Levels (1—4) Open your spell tab and expand your single option. Place the lifetap you find there in your hotbar.

Use your Lifetap spells any time you've taken damage. […] At higher levels, you gain more powerful spells in the Lifetap category.

[…] or use lifetap spells that heal the caster while damaging their target to keep themselves alive while they fight alongside their pet.