Prowess

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

Thunderbond Vanguard's power and toughness are each equal to the number of creatures you control.

Each creature token you control enters as a copy of this creature.

Attacking tokens you control get +1/+0.

Whenever you cast your first creature spell each turn, that spell gains mobilize 2.

Double team

Flurry — Whenever you cast your second spell each turn, until end of turn, this creature has base power and toughness 4/4 and gains flying.