This is the goldfishing deck for experimenting around with my CoCo-Vial build 4 Color CoCo-Vial Allies (61-56-3 match record). That deck is currently 42-40-2 in matches over the past year.
Currently trying out Beastcaller Savant,
Expedition Envoy
, and Reckless Bushwhacker in the FlexSpots (and for one Survivalist). Also substituting in one of the Temple Garden for a Sacred Foundry.
None of the three are spectacular... but they feel like they make the deck a bit more stable.
Expedition Envoy
is no
Hada Freeblade
, but including 2 increases your chance of having a one CMC card in your opening hand from 65% to 74%. It also increases the chances of being able to use
Reckless Bushwacker
.
Reckless Bushwhacker is a non-bo with Aether Vial or CoCo, and it seems like it might be really strong in a lead the stampede deck. I'm tempted by lead the stampede, and it feels good with Aether Vial, but I'm having trouble giving up the explosiveness of CoCo. The key play is getting one in after a Harabaz Druid or to get whatever came in off of coco the chance to attack. If Vial and CoCo are playing well, it feels better to have this just sit in your hand.
Beastcaller Savant felt bad when it first came out (comparing it to the turn one mana from elves or hierarch). In practice it seems to help a bit with 19 lands, makes the extra one casting cost creatures more useful once in a while, and gets to attack off of CoCo.
Also periodically trying Lead the Stampede... but I miss the explosiveness of CoCo triggers on Battlesinger. Also have been trying Simian Spirit Guide for a little extra boost now and then.