Volibear

When you play a [Mighty] unit, you may exhaust me to channel 1 rune exhausted. (A unit is Mighty while it has 5+ .)

[Deflect 2] (Opponents must pay to choose me with a spell or ability.)
When I attack, deal 5 damage split among any number of enemy units here.

[Shield 3] (+3 while I'm a defender.)
[Tank] (I must be assigned combat damage first.)
When an opponent moves to a battlefield other than mine, draw 1. (Bases are not battlefield.)

Choose a friendly unit in your base. Deal damage equal to its Might to all enemy units at a battlefield, then move your unit there.