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 Martyr's Soul enters the battlefield, if you control no tapped lands, put two +1/+1 counters on it.
![Martyr's Soul [Modern Horizons] MTG Single Magic: The Gathering](http://www.undiscoveredrealm.com/cdn/shop/products/martyrs-soul-modern-horizons-mtg-single-magic-the-gathering-642884_1024x1024.jpg?v=1693757323)
