Equipped creature gets +1/+0 for each blood counter on this Equipment and has "{T}, Sacrifice a creature: Put a blood counter on Rakdos Riteknife." {B}{R}, Sacrifice this Equipment: Target player sacrifices a permanent of their choice for each blood counter on this Equipment. Equip {2}
Defender This creature enters with a +1/+1 counter on it. At the beginning of each player's upkeep, that player draws a card for each +1/+1 counter on this creature. {2}{W}{U}: Put a +1/+1 counter on this creature.
{T}: Add {C}. {T}, Sacrifice this land: Destroy target land. Its controller may search their library for a basic land card, put it onto the battlefield, then shuffle.
Flash When this creature enters, creatures you control gain shroud until end of turn. When this creature enters, sacrifice it unless {G} was spent to cast it.
When this creature enters, destroy target artifact or enchantment.
"An indrik's howl has destructive power much subtler than that of its crushing foot. The sound is mundane, but inaudible vibrations scatter and sunder magical contrivances." —Simic research notes
Flying When this creature enters, create two 1/1 green and blue Snake creature tokens. When this creature enters, sacrifice it unless {U} was spent to cast it.
Enchant Forest As this Aura enters, choose a color. Whenever enchanted Forest is tapped for mana, its controller adds an additional one mana of the chosen color.
{1}, {T}: Exile target creature you control. {7}, {T}: Exile target creature you don't control. When Helvault is put into a graveyard from the battlefield, return all cards exiled with it to the battlefield under their owners' control.