Duskshell Crawler

Lifelink Modular 1 (This creature enters with a +1/+1 counter on it. When it dies, you may put its +1/+1 counters on target artifact 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.)

Exploit (When this creature enters, you may sacrifice a creature.) Menace When this creature exploits a creature, destroy target creature you don't control with mana value 3 or less.

T: Add C. 1: This land becomes a 2/2 Assembly-Worker artifact creature until end of turn. It's still a land. T: Target Assembly-Worker creature gets +1/+1 until end of turn.

W, Sacrifice this enchantment: Exile target creature that's attacking you or a planeswalker you control.

Dakkon enters with a number of loyalty counters on him equal to the number of lands you control. +1: Surveil 2. −3: Exile target creature. −6: You may put an artifact card from your hand or graveyard onto the battlefield.

Draw three cards. Basic landcycling 1U (1U, Discard this card: Search your library for a basic land card, reveal it, put it into your hand, then shuffle.)

Whenever you gain life, you may put that many +1/+1 counters on each creature you control. Do this only once each turn.