+Burrow (8)
Trample
Burrowguard Mentor's power and toughness are each equal to the number of creatures you control.
Enchant creature
Enchanted creature has mountainwalk. (It can't be blocked as long as defending player controls a Mountain.)
When Burrowing Razormaw dies, mill four cards. (Put the top four cards of your library into your graveyard.)
Vigilance
Faeburrow Elder gets +1/+1 for each color among permanents you control.
: For each color among permanents you control, add one mana of that color.
Deathtouch
Whenever Flesh Burrower attacks, another target creature you control gains deathtouch until end of turn.
: Add .
, : Target Goblin creature gets +2/+0 until end of turn.
Choose up to five worth of modes. You may choose the same mode more than once.
— Create a 1/1 white Rabbit creature token.
— Exile target nonland permanent. Its controller draws a card.
— Return target permanent card with mana value 3 or less from your graveyard to the battlefield with an indestructible counter on it.
Whenever Stubborn Burrowfiend becomes saddled for the first time each turn, mill two cards, then Stubborn Burrowfiend gets +X/+X until end of turn, where X is the number of creature cards in your graveyard.
Saddle 2 (Tap any number of other creatures you control with total power 2 or more: This Mount becomes saddled until end of turn. Saddle only as a sorcery.)
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