Arbiter of Knollridge

Regenerate target creature. You gain life equal to that creature's toughness.

Other Treefolk creatures you control get +1/+1. Other Treefolk and Forests you control have indestructible.

As this land enters, you may reveal a Goblin card from your hand. If you don't, this land enters tapped. T: Add B or R.

(T: Add B.)

As an additional cost to cast this spell, reveal an Elemental card from your hand or pay 3.

As long as you control a Giant, this creature gets +1/+1 and has first strike.

+1: Chandra Nalaar deals 1 damage to target player or planeswalker. −X: Chandra Nalaar deals X damage to target creature. −8: Chandra Nalaar deals 10 damage to target player or planeswalker and each creature that player or that planeswalker's controller controls.

(T: Add U.)