Toski gives Creature-heavy Green decks literally everything they want: a sticky threat, a steady draw engine, and a very good reason to keep turning cards sideways
By playing enough of both, you'll be passively gaining lore, draining your opponent, and have a board state that will be very tricky for your opponent to unpick in time
Black, on the other hand, has things like Altar's Reap, Read the Bones, or Phyrexian Arena
Creature - Soldier Cat Color tag templates(None) Linden, the Steadfast Queen Vigilance (Attacking doesn't cause this creature to tap.) Whenever a white creature you control attacks, you gain 1 life
Sokratic Dialogue - : Until end of turn, target creature gains "If this creature would deal combat damage to a player, prevent that damage