Renar, Flourishing Shield

You may cast cards exiled with Trichal, Rotting Sword, for each {w},{u},{b},{r}, or {g} in the exiled cards mana cost you may pay 2 life rather than pay that mana

Equipped creature has trample
Trample
When Renar, Flourishing Shield dies, if it was a creature, return it to the battlefield under its owner's control. It's an enchantment. (It's not a creature.)

Partner with Trichal, Rotting Sword