The Conclave acts with a single will, expressed by countless warriors.

Foundations Jumpstart

Overwhelm

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for {1} or one mana of that creature's color.)
Creatures you control get +3/+3 until end of turn.

"Let the song of Selesnya be heard above the rhythm of our thundering hordes!"

Ravnica Remastered

Modern Masters 2015

Magic 2015

Ravnica: City of Guilds

Convoke (Each creature you tap while playing this spell reduces its cost by {1} or by one mana of that creature's color.)
Creatures you control get +3/+3 until end of turn.