Cast Symbiosis, targeting the ants and the merfolk in response to the Arc Lightning
Untap, Upkeep,
MT
Pendrell Drake
Done
Spiderman: 20
Hand: 8
(U) Island
(T) Plains
(T) Mt
(T) Swamp
(U) Forest
Rune of Protection: Green (W: prevent all damage to you from a green source)
(T) Pegasus Charger (2/1, flying, first strike)
(U) Sanctum Custodian (1/2, T: prevent the next 2 dmg that would be dealt to target creature or player this turn)
Graveyard: No Rest for the Wicked, Disruptive Student, Mt, Raze, Arc Lightning
RFG:
mooseman: 18
Hand: 9
(T) Swamp
(UT) Mountain
(T) Island
(T) Forest
(U) Drifting Meadow
(U) Dragon's Blood (Artifact, {3}, {Tap}: Put a +1/+1 counter on target creature.)
Rune of Protection:Black (W: prevent all damage to you from a black source.)
(S) Pendrell Drake (2/3, Flying)
(U) Fire Ants (3/2, Insect, T: Fire Ants deals 1 damage to each other creature without flying.) +1/+1 counter
(S) Sandbar Merfolk (1/1)
Graveyard: Duress, Sicken, Plains, Symbiosis
RFG: