Name:Kessig Naturalist
ManaCost:R G
Types:Creature Human Werewolf
PT:2/2
T:Mode$ Attacks | ValidCard$ Card.Self | Execute$ TrigMana | TriggerDescription$ Whenever CARDNAME attacks, add {R} or {G}. Until end of turn, you don't lose this mana as steps and phases end.
SVar:TrigMana:DB$ Mana | Amount$ 1 | Produced$ Combo R G | PersistentMana$ True
K:Daybound
AlternateMode:DoubleFaced
Oracle:Whenever Kessig Naturalist attacks, add {R} or {G}. Until end of turn, you don't lose this mana as steps and phases end.\nDaybound (If a player casts no spells during their own turn, it becomes night next turn.)

ALTERNATE

Name:Lord of the Ulvenwald
ManaCost:no cost
Colors:red,green
Types:Creature Werewolf
PT:3/3
S:Mode$ Continuous | Affected$ Wolf.Other+YouCtrl,Werewolf.Other+YouCtrl | AddPower$ 1 | AddToughness$ 1 | Description$ Other Wolves and Werewolves you control get +1/+1.
SVar:PlayMain1:TRUE
T:Mode$ Attacks | ValidCard$ Card.Self | Execute$ TrigMana | TriggerDescription$ Whenever CARDNAME attacks, add {R} or {G}. Until end of turn, you don't lose this mana as steps and phases end.
SVar:TrigMana:DB$ Mana | Amount$ 1 | Produced$ Combo R G | PersistentMana$ True
K:Nightbound
DeckHints:Type$Wolf|Werewolf
Oracle:Other Wolves and Werewolves you control get +1/+1.\nWhenever Lord of the Ulvenwald attacks, add {R} or {G}. Until end of turn, you don't lose this mana as steps and phases end.\nNightbound (If a player casts at least two spells during their own turn, it becomes day next turn.)
