Best Upgrades for MTG Rebellion Rising Deck

The new card, Otharri, Suns’ Glory Otharri, Suns’ Glory Flying, lifelink, haste
Whenever Otharri attacks, you get an experience counter. Then create a 2/2 red Rebel creature token that's tapped and attacking for each experience counter you have.
{2}{R}{W}, Tap an untapped Rebel you control: Return this card from your graveyard to the battlefield tapped. serves as the deck’s subcommander. Otharri is a 3/3 Pheonix for five mana with flying, lifelink, and haste. Otharri gives you an experience counter whenever it attacks and then generates an attacking 2/2 rebel token for each experience counter you have. The Pheonix can also be brought back from the graveyard for only four mana by tapping an untapped Rebel you control. This enables you to skirt around the Commander Tax if you decide to place Otharri at the head of the deck. Whether you put Otharri in the Command Zone, or keep them as one of the 99, they support the deck by giving you plenty of tokens to attack with.

Rebellion Rising is packed full of token-generating cards. Some like Finale of Glory Finale of Glory Create X 2/2 white Soldier creature tokens with vigilance. If X is 10 or more, also create X 4/4 white Angel creature tokens with flying and vigilance. and White Sun’s Zenith White Sun’s Zenith Create X 2/2 white Cat creature tokens. Shuffle White Sun's Zenith into its owner's library. give you a large number of tokens in a single burst. Others like Legion Warboss Legion Warboss Mentor (Whenever this creature attacks, put a +1/+1 counter on target attacking creature with lesser power.)
At the beginning of combat on your turn, create a 1/1 red Goblin creature token. That token gains haste until end of turn and attacks this combat if able. , Loyal Apprentice Loyal Apprentice Haste
Lieutenant — At the beginning of combat on your turn, if you control your commander, create a 1/1 colorless Thopter artifact creature token with flying. That token gains haste until end of turn. , and Assemble the Legion Assemble the Legion At the beginning of your upkeep, put a muster counter on this enchantment. Then create a 1/1 red and white Soldier creature token with haste for each muster counter on this enchantment. provide you with a recurring trickle of tokens every turn.

The deck also has an equipment subtheme. Cards like Goldwardens’ Gambit Goldwardens’ Gambit Affinity for Equipment (This spell costs {1} less to cast for each Equipment you control.)
Create five 2/2 red Rebel creature tokens. They gain haste until end of turn. For each of those tokens, you may attach an Equipment you control to it. and Jor Kadeen, the Prevailer Jor Kadeen, the Prevailer First strike
Metalcraft — Creatures you control get +3/+0 as long as you control three or more artifacts. reward you for making use of the abundance of equipment cards in the deck. The deck features several “For Mirrodin” cards which are pieces of equipment that come into play attached to a 2/2 Rebel token, tying the equipment and creature token themes together. Depending on your preference, you may wish to enhance this subtheme or adapt it out of the deck entirely.

Whether you decide to keep the equipment focus in the deck or not, it’s important to keep some cards around to buff your creatures. Effects like those provided by Intangible Virtue Intangible Virtue Creature tokens you control get +1/+1 and have vigilance. and Felidar Retreat Felidar Retreat Landfall — Whenever a land you control enters, choose one —
• Create a 2/2 white Cat Beast creature token.
• Put a +1/+1 counter on each creature you control. Those creatures gain vigilance until end of turn. are essential for this deck to function. A 1/1 token attacking with double strike is nothing to write home about. A 2/2 double striker is a bit scarier. It’s once your tokens start getting up to 3/3 that you know you’re in a good place, with even the smallest of your tokens dealing 6+ damage per attack.

Here are a few quick cards to upgrade the deck with which you can grab for less than a dollar…

Rabble Rousing Rabble Rousing Hideaway 5 (When this enchantment enters, look at the top five cards of your library, exile one face down, then put the rest on the bottom in a random order.)
Whenever you attack with one or more creatures, create that many 1/1 green and white Citizen creature tokens. Then if you control ten or more creatures, you may play the exiled card without paying its mana cost. is a great budget card that can generate a huge number of tokens in a deck like this. Rabble Rousing gives you a 1/1 Citizen token whenever you attack for each creature you are attacking with. What makes this effect so strong is that it feeds into itself. Each of the tokens it gives you means you will have more creatures to attack with on your next turn, which will then reward you with a higher number of tokens. You also get some incidental card draw from its hideaway effect, which is a nice little bonus.

Board wipes are the worst enemy of go-wide token decks like this. Unbreakable Formation Unbreakable Formation Creatures you control gain indestructible until end of turn.
Addendum — If you cast this spell during your main phase, put a +1/+1 counter on each of those creatures and they gain vigilance until end of turn. gives you an answer to them. You can cast this card at instant speed, during an opponent’s turn, to protect your big board of tokens from being wiped out by a Wrath of God Wrath of God Destroy all creatures. They can't be regenerated. . If you’re feeling daring, you can also use this card offensively, casting it during your main phase to give all of your creatures +1/+1 counters and the ability to attack without needing to worry about getting destroyed in combat.

Sram’s Expertise Sram’s Expertise Create three 1/1 colorless Servo artifact creature tokens.
You may cast a spell with mana value 3 or less from your hand without paying its mana cost. provides a great way of developing your board in the early and mid game. For four mana, Sram’s Expertise generates three 1/1 Thopter tokens and then allows you to cast a spell with a mana value of three or less from your hand for free. You can bring in a Legion Warboss Legion Warboss Mentor (Whenever this creature attacks, put a +1/+1 counter on target attacking creature with lesser power.)
At the beginning of combat on your turn, create a 1/1 red Goblin creature token. That token gains haste until end of turn and attacks this combat if able. to generate even more tokens alongside your Thopters or a Maul of the Skyclaves Maul of the Skyclaves When this Equipment enters, attach it to target creature you control.
Equipped creature gets +2/+2 and has flying and first strike.(It deals combat damage before creatures without first strike.)
Equip {2}{W}{W} to turn one of those Thopters into a 3/3 flyer with first strike. Whatever you choose to bring out alongside Sram’s Expertise you’re bound to get a bargain for only four mana

This deck really wants cheap ways of generating large tokens and Gnoll War Band Gnoll War Band This spell costs {1} less to cast for each opponent who was dealt damage this turn.
Menace
Myriad (Whenever this creature attacks, for each opponent other than defending player, you may create a token copy that's tapped and attacking that player or a planeswalker they control. Exile the tokens at end of combat.) can provide that. The War Band costs six mana, at base rate, but can be discounted by one mana per opponent damaged in any given turn. Assuming you’re in a four-player game, if you spread your attacks out, you can get Gnoll War Band out for three or four mana consistently. Gnoll Warband’s myriad effect makes it work beautifully with Neyali, Suns’ Vanguard Neyali, Suns’ Vanguard Attacking tokens you control have double strike.
Whenever one or more tokens you control attack a player, exile the top card of your library. During any turn you attacked with a token, you may play that card. . This card gives you three double striking, 5/5 tokens with menace during each of your combat phases.