Martyr's Soul MH1/19

Set: Modern Horizons
Collector Code: MH1/19
Name: Martyr's Soul
Type: Creature — Spirit Soldier
Oracle text: 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.) When this creature enters, if you control no tapped lands, put two +1/+1 counters on it.
Rarity: Common