Modern Horizons 3 (mh3)
#159 • uncommon • English • Foil
#159 • uncommon • English • Foil
Hydra Trainer 
1
Creature — Human Warrior
You may exert this creature as it attacks. When you do, target creature gets +X/+X until end of turn, where X is the number of counters on permanents you control. (An exerted creature won't untap during your next untap step.)
: Adapt 2. (If this creature has no +1/+1 counters on it, put two +1/+1 counters on it.)
2
: Adapt 2. (If this creature has no +1/+1 counters on it, put two +1/+1 counters on it.)Illustrated by Ryan Pancoast
Links
Legalities
Not Legal
Legal
historicNot Legal
Legal
ModernLegal
LegacyNot Legal
Legal
vintageLegal
CommanderLegal
brawlNot Legal
Rulings
If an exerted permanent is already untapped during your next untap step (most likely because an effect untapped it), exert's effect preventing it from untapping expires without having done anything.
2024-06-07 • wotc
If you gain control of another player's permanent until end of turn and exert it, and then that player regains control of it, it will untap during that player's untap step.
2024-06-07 • wotc
You can exert Hydra Trainer as you declare it as an attacking creature. You can't do so later in combat, and creatures put onto the battlefield attacking can't be exerted. Any abilities that trigger on exerting an attacking creature will resolve before blockers are declared.
2024-06-07 • wotc
You don't choose a target for Hydra Trainer's first ability at the time it triggers. Rather, a second "reflexive" ability triggers when you exert Hydra Trainer this way. You choose a target for that ability as it goes on the stack. Each player may respond to this triggered ability as normal.
2024-06-07 • wotc
The value of X is determined only once, as the reflexive triggered ability resolves.
2024-06-07 • wotc
You can always activate an ability that will cause a creature to adapt. As that ability resolves, if the creature has a +1/+1 counter on it for any reason, you simply won't put any +1/+1 counters on it.
2024-06-07 • wotc
If a creature somehow loses all of its +1/+1 counters, it can adapt again and get more +1/+1 counters.
2024-06-07 • wotc
Alternate Printings
Normal: $0.14 | Foil: $0.14