Pack's Favor | 139 | Guilds of Ravnica

Set: Guilds of Ravnica
Rarity: C
#: 139
Creature Type or Sub Type: Instant
Rules Text Contains: 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.)
Target creature gets +3/+3 until end of turn.
Flavor: Selesnya grows its ranks in more ways than one.