Krosan Drover

Trample

Whenever you cast a spell with mana value 5 or greater, put a +1/+1 counter on this creature.

Cascade (When you cast this spell, exile cards from the top of your library until you exile a nonland card that costs less. You may cast it without paying its mana cost. Put the exiled cards on the bottom in a random order.)

Spells you cast with mana value 6 or greater have cascade.

Reach

Whenever you cast a spell with mana value 5 or greater, create a Food token. (It's an artifact with ", , Sacrifice this token: You gain 3 life.")

Whenever you cast a creature spell with mana value 6 or greater, put three +1/+1 counters on this creature.

: Add . When you spend this mana to cast a spell with mana value 6 or greater, draw a card.

Partner (You can have two commanders if both have partner.)

Whenever you cast an Eldrazi creature spell with mana value 7 or greater, draw two cards.