Chandra, Bold Pyromancer [Dominaria] Ravnica Allegiance Prerelease Promos {4}: Put a +1/+1 counter

{4}: Put a +1/+1 counter on Walking Ballista

Here are the rules

Edgewall innkeeper

"After these words the magician drew a ring off his finger

000 Type: Creature — Human Tyranid Wizard Rarity: Rare Cost: {1}{G} Genomic Enhancement — {T}: Add one mana of any color

Chandra, Bold Pyromancer [Dominaria] Ravnica Allegiance Prerelease Promos {4}: Put a +1/+1 counterSet: Dominaria Type: Legendary Planeswalker Chandra Rarity: Mythic Cost: {4}{R}{R} +1: Add {R}{R}. Chandra, Bold Pyromancer deals 2 damage to target player. 3: Chandra, Bold Pyromancer deals 3 damage to target creature or planeswalker. 7: Chandra, Bold Pyromancer deals 10 damage to target player and each creature and planeswalker they control.