Legality depends on the tournament format -- Reeshaddoll Wendikurhu can be legal in some formats and banned or restricted in others
A handful of Trainer SARs fill out the next rung of chase cards: These can be worth targeting if you want recognizable Trainer cards without paying top-three prices
Its also easier to meet the requirements of casting Twice Upon a Time you essentially just need two creatures on the field
The Maushold ex card rather oddly features Greedents Nom-Nom-Nom Incisors 120-damage attack, albeit reduced to only drawing two cards rather than three, but it features an Ability thats going to be so much fun: If this Pokmon is in the Active Spot and is damaged by an attack from your opponents Pokmon ( even if this Pokmon is Knocked Out ), put 3 damage counters on the Attacking Pokmon for each of your Tandemaus, Maushold, and Maushold ex in play
I think these one-mana artifacts are better overall sideboard cards because of how cheap and flexible they are
You can read more about the mechanic's nuances here, but for our purposes, this means Encouraging Aviator can use the classic Alpha spell Jump to bring a friend along on a flying attack