Mold Adder | Creature | Fungus Snake | Whenever an opponent casts a blue or black spell, you may put a +1/+1 counter on Mold Adder. | Matt Cavotta
Bushwhack | Sorcery | | Choose one —
• Search your library for a basic land card, reveal it, put it into your hand, then shuffle.
• Target creature you control fights target creature you don't control. (Each deals damage equal to its power to the other.) | Artur Nakhodkin
Giant Growth | Instant | | Target creature gets +3/+3 until end of turn. | Matt Cavotta
Llanowar Elves | Creature | Elf Druid | {T}: Add {G}. | Kev Walker
Mild-Mannered Librarian | Creature | Human | {3}{G}: Mild-Mannered Librarian becomes a Werewolf. Put two +1/+1 counters on it and you draw a card. Activate only once. | Justyna Dura
Snakeskin Veil | Instant | | Put a +1/+1 counter on target creature you control. It gains hexproof until end of turn. (It can't be the target of spells or abilities your opponents control.) | Dan Murayama Scott
Wildwood Scourge | Creature | Hydra | Wildwood Scourge enters with X +1/+1 counters on it.
Whenever one or more +1/+1 counters are put on another non-Hydra creature you control, put a +1/+1 counter on Wildwood Scourge. | Bryan Sola