When Jade Avenger needs to block it will trade higher
The cards are not exactly powerful, they are painfully slow at dealing with anything with converted mana cost above zero and are only really effective if charged up preemptively
Tifa offers potential extra combats while dealing a ton of damage, though theres a lot of trickery about the way the triggered ability actually works
It also shuts down search effects for everyone but you, without any of the nasty tricks that can be pulled with the likes of an Opposition AgentOpposition Agent
Those are the most powerful cards for Jarad, but if you dont want to go the combo route let me know your goals for the deck and I can offer more appropriate suggestions Lilbrudder on Is Thrasios Ban-able
Aeve, Progenitor Ooze All of History, All at Once Amphibian Downpour Astral Steel Brain Freeze Chatterstorm Crackling Spellslinger Crow Storm Dragonstorm Elemental Eruption Empty the Warrens Fiery Encore Flusterstorm Galvanic Relay Grapeshot Ground Rift Haze of Rage Hindering Touch Hunting Pack Ignite Memories Krosan Adaptation (playtest) Mind's Desire Mordor on the March Prismari, the Inspiration Radstorm Ral, Crackling Wit Reaping the Graves Scattershot Spreading Insurrection Sprouting Vines Storm of Memories Storm, Force of Nature Stormscale Scion Tempest Technique Temporal Fissure Tendrils of Agony Volcanic Awakening Weather the Storm Wing Shards