As you can see in the side, since Robs main deck was built to beat Turbo G1, a majority of his side was dedicated to aggro matchups, warrior, and burn
Bring these 100-card decks to the table and battle with 35 players
If you net more than 3 cards because you're hellbent this instant is better than Harmonize
That said, cards like Golos, the Tireless Pilgrim and Kenrith, the Returned King work extremely well with Zirda, the Dawnwaker, and both mana dorks and planeswalkers are essentially free (since tapping for mana and loyalty abilities are both activated abilities), while cycling also counts as an activated ability
You get a whacking 270 damage with Mega Brave for just two Energy, but you then cant use it the next turn
Remove two currency counters from this creature: Untap target basic land