At my lsg, when this happens (which does for draft more than anything else), the store employee will usually play out the match, and then if they would win, right before lethal is dealt they concede.
Rabid Bite also works really well with the Zada combo, even if it is sorcery speed, each of your creatures then deals damage to all opponents creatures and get more wolves. This doesn't even depend on wolves, Zada and board full of anything works well with bite, the wolves just give you an added benefit of getting more wolves.
I've been working on a Werewolf shell with him, Zada, Hedron Grinder, and a bunch of werewolfs and pump spells. Expedite targeting Zada basically reads draw X cards and put X 2/2 wolf tokens onto the battlefield where X is the number of wolves you control for one red mana. Working on making it more consistent.
I didn't play 2hg, but the card that worked well for me which wasn't mentioned so far was Iona's Blessing. I either put it on a flyer or big body. Flyers usually won me the game pretty early if they didn't have flyers or the big bodies turned the game around in my favor being able to attack with vigilance then be able to block two creatures on their turn.
If I use March of the Tomb and target only Zada, Hedron Grinder, would it return all allies from my graveyard to the battlefield? Sorry if this has been answered already, couldn't find an answer easily.
Rising Miasma worked out very well for me. I was playing BG ramp into bigger Eldrazi. I would sac all my scions one turn to a big Eldrazi and next turn play miasma to clear my opponents board several times. Lots of creatures in this format fell to that card, especially in ally decks.
Endless One could find its way into a good number of decks considering it's playable at any point in the game, and counters seem to be a growing thing based on the price spike of Hardened Scales.
Relatively new to MTG, but I don't believe Zada triggers at all because you don't control Zada. Same reasoning for not being able to trigger activated abilities on cards you don't control unless it says you can on it.
If I use March of the Tomb and target only Zada, Hedron Grinder, would it return all allies from my graveyard to the battlefield? Sorry if this has been answered already, couldn't find an answer easily.