Horse Girls is a UR card from update 24.5.
Horse GirlsUMAMASUMAE!!
horsegirls:1Steps: Collect Horsegirl Fragment (8/8).
Horsegirls Bundle · $9.99
Grants all 8 fragments, enough to summon this card straight away. Bundle contents · Ko-fi listing
+0.0% from levels · 100 cap at this prestige
No ascension bonus
Needs A3 and level 100
Base stat
Base stat
Base stat
Base stat
When viewed:
• Gain a Variant Selector; select one racer.
Gold Ship:
• Gain +20% Crit Chance; Crits generate +1 Momentum.
Haru Urara:
• Gain +40 SPD; each action generates +1 Momentum.
Agnes:
• Gain +20% Damage Reduction; taking damage generates +1 Momentum.
Opera O:
• Gain +25% ATK; defeating an enemy generates +3 Momentum.
At the end of each turn:
• Consume 2 Momentum stacks to increase the selected racer bonus by +15% for the rest of battle; if this card has fewer than 2 Momentum, gain +1 Momentum instead.
When this card reaches 10 Momentum stacks:
• Immediately gain 1 additional action and reset Momentum to 0 (can trigger multiple times per battle).
When the selected racer bonus reaches +100%:
• Activate World Champion.
While in World Champion:
• Gain +100% Damage Inflicted and +2 actions per turn; Momentum generation is doubled; this state lasts until the end of battle.
When allied with 
Agnes (Scientist):
• Momentum generation from all sources is increased by +1; the racer bonus cap before triggering World Champion is reduced from +100% to +75%; any debuff redirected by Agnes (Scientist) also grants this card +1 Momentum.