Phyrexian Dreadnought via Illusionary Mask
Turn this serpent sideways, get Koma's Coil tokens, use them as blockers, and start again on your next turn
The problem is, Counter-Burn doesn't want to go nuts on its turn
By copying planeswalker abilities when it hits, it doubles your activations for a turn
// Bahamut, Warden of Light Legendary Enchantment Creature Saga Dragon 5/5 (As this Saga enters and after your draw step, add a lore counter.) I, II Wings of Light Put a +1/+1 counter on each other creature you control
Doctor's companion (You can have two commanders if the other is the Doctor.) Whenever you sacrifice a Clue, Martha Jones and up to one other target creature can't be blocked this turn