Thunderbond Vanguard

Prowess Whenever you cast a noncreature spell, conjure a card named Monastery Mentor onto the battlefield.

Attacking tokens you control get +1/+0. Whenever you cast your first creature spell each turn, that spell gains mobilize 1.

Flash Flying When this creature enters, secretly choose land or nonland. Seek two cards of the chosen kind.

As long as this card is the top card of your library, you may look at it any time and you may cast it. Flying

This spell costs 1 less to cast for each Dragon card in your library. Seek a Dragon card. Harmonize 8RR

As an additional cost to cast this spell, you may behold a Dragon. Target player discards a card with the greatest mana value among cards in their hand. If a Dragon was beheld, exile that player's graveyard.

This creature enters tapped. When this creature dies, return it to the battlefield under its owner's control. It perpetually loses this ability.

Renew — 1BB, Exile this card from your graveyard: Put three +1/+1 counters on target creature you control. It perpetually gains this ability. Activate only as a sorcery.